The Coros Pace 4 is an ideal first serious fitness watch, or a more modern-feeling upgrade for those with a years-old model.
Long battery life
Light and comfortable
Broad features for the money
Music feature feels limited
No on-watch maps on this model
Inconsistent HR results with some activities
Key Features
Review Price: £229.99
Built-in microphone
Unusually, Coros gave the Pace 4 a microphone but no speaker, intended for attaching voice notes to your activities.
Dual-band GPS
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Despite being fairly affordable, the Pace 4 has dual-band GPS for more accurate location tracking.
OLED screen
This latest model sees the Pace series get on board the OLED train, with a 1.2in touchscreen.
Introduction
The Coros Pace 4 is a relatively affordable fitness watch with heaps of features. And it arrived just over two years after the Pace 3.
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They both offer enough features to tempt some people away from entry-level models in Garmin’s popular Forerunner range, and the Pace 4 is the first in the series to feature a smartwatch-like OLED screen. The real Coros hit here is that there’s no major sacrifice in battery life. This is a long-lasting watch, despite its new, brighter and more colourful screen.
It’s also highly comfortable and has enough high-end stats to keep you well informed about your fitness years after you start training. And the Coros Pace 4 problems? You don’t get quite the accuracy or interface gloss of a Garmin or Apple Watch, and some features could be developed further, like custom training plans and music support.
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Design
From 39g weight (including strap)
Plastic casing
Buttons, rotary dial and touchscreen
Sometimes the things that make a runner’s watch more expensive can, in some ways, make it worse. The Coros Pace 4 is a fairly humble and petite plastic-shelled design, but this helps it keep weight down to just 40g with the silicone strap I have, or 32g in the nylon band version.
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It’s nearly identical to the weight of the Garmin Forerunner 165. And low weight was one of the reasons I kept using that watch months after testing was over. A light watch is less prone to movement while you run, which can affect heart rate accuracy, and is far more pleasant to wear overnight.
You can choose between the silicone or nylon straps when you buy, and the Pace 4 comes in subtle two-tone white and black finishes.
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Despite being a cost-conscious watch, the Coros Pace 4 has multiple methods of control. There’s a touchscreen, side buttons, and a rotating crown for scrolling through menus. The watch even has quite refined-feeling haptics, although the breadth of what the haptic motor can do isn’t close to as wide as an Apple Watch’s.
Like just about every decent watch in this class, the Pace 4 has 5ATM water resistance and is considered ready for pool swimming. Just don’t take it for a diving session.
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Screen
OLED screen
390 x 390 pixels
Mineral glass protection
The Coros Pace 4 has a 1.2-inch, 390 x 390-pixel OLED screen. It’s sharp, and dramatically more colourful and punchy than the MIP display of the Pace 3.
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In its default mode, the watch’s brightness is a little low considering the screen is rated at a more-than-respectable 1500 nits. You might want to consider bumping it up to one of the two higher settings to see what the Pace 4 can do, although none of them get close to the sheer brightness of a Garmin Forerunner 570 or Forerunner 970, mostly due to how brightness is handled versus ambient light level.
That’s no issue, though. They are far more expensive watches, and the closer Forerunner 165 is only rated for 800 nits of brightness.
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You have the option to switch on the Pace 4’s “always on” mode too. As usual, this keeps the screen lit when the watch is worn but not in use, displaying a dimmed version of the clock display. But it does come with a cost to battery life.
Features and battery life
Up to 19 days of battery life
Dual-band GPS
Music support for Bluetooth devices
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Coros rates the Pace 4 for up to 19 days of use between charges, to six days in the always-on screen mode.
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I’ve found it tends to last around 12 days with my kind of usage. But you can expect greater variance in an OLED watch like the Pace 4 than an MIP one like the Pace 3. And that’s particularly true if you set the screen to stay on during tracked exercise and do some longer distance running, cycling or walking.
This is excellent stamina for a watch this small with an OLED screen. Long battery life is a common trait among Coros watches.
The Pace 4 is one of the company’s cheaper watches, though, which rules out a few higher-end features. You can’t download map data to the watch; only breadcrumb-trail-style GPX files.
And while there is a microphone, there is no speaker. In most watches, the microphone and speaker come as a pair, because one of their main duties is enabling a connection to a smart assistant. But Coros has taken a different approach with the Pace 4.
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You use the microphone to log voice note style clips to accompany your workouts, or as “voice pins” more likely to be useful for hiking and walking. I doubt many will use this too often, though, as it’s actually not that convenient to do with the current software version.
Returning to the more familiar stuff, the Coros Pace 4 has a typically highly competitive set of features in this class. It has dual-band GPS, for better location tracking in more challenging spaces. I had zero issues with GPS signal during testing, although I was not testing in a steep valley or in the centre of Manhattan.
Coros also provides some stats that go beyond the beginner stuff. At the top of the list is a set of vitals that serious athletes can use to manage their workload. These are training load, recovery (expressed as a percentage) and Training Status. As usual, these are influenced by factors such as your sleep, workouts, stress, and your heart rate relative to performance during workouts.
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Add to those your Running Fitness stat and cycling FTP, and runners/cyclists can get a reasonably complete view of how their training is working over time. Viewing Running Fitness data doesn’t require any extra effort and gives you an estimate of your 5K/10K/HM/marathon times. It’s a little like VO2 Max, but it isn’t a replacement for it, as you can find that score too if you dig into the app.
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However, as usual, cycling FTP requires a power meter, so Coros isn’t just left pulling stats out of the air.
The Coros Pace 4 doesn’t lack any core sensors either. Its heart rate array has the LEDs required for blood oxygenation readings, and crucially, there is a barometric altimeter too. Coros doesn’t use this to estimate the number of flights of stairs you climb each day — which Garmin offers — but you can see your elevation and air pressure.
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There’s not much friendly fluff to the Coros Pace 4 considering it’s a somewhat entry-level watch, but then again if you seek out this brand, proper activity tracking is likely your goal. Another kind of fluff might be worth thinking about a little more, though.
The Pace 4’s interface is practical and not too complicated, but it isn’t super slick compared with that of plenty of other less fitness-driven OLED watches. And that of the Garmin Forerunner series. A bump in sharpness and vibrancy, thanks to the screen, isn’t really matched with much improved interface sophistication and style.
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You can also use the Coros Pace 4 for phone-free entertainment, as it has some storage for music. 4GB is the quoted figure, but only around 1.7GB is actually available. These need to be your own digital audio files, as the Pace 4 does not sync with music services like Spotify.
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Once again, a smartwatch-style display doesn’t come with a modern smartwatch sensibility elsewhere. And as there’s no speaker, you need to connect to Bluetooth headphones or a speaker.
The Pace 4 can also send its live heart rate data to other devices over Bluetooth. It’s not a proprietary system, operating much like a Bluetooth-based HR chest strap on the back-end.
Performance
Decent but imperfect HR results
Very good tested GPS accuracy
The Coros Pace 4’s performance can be divided into two core characteristics. Location tracking is great; it can reliably pin your position tightly enough to clearly show when you cross the road, without ending up with a map showing you careening through buildings.
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Triangulation takes a few seconds, but nothing long enough to slow down your workouts as long as the Pace 4 has up-to-date GPS info synced through the Coros app.
There are some slight holes to poke in the Pace 4’s heart rate readings, but likely not deal-breaking ones for most.
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For running, it only messed up on the initial test run, showing a too-high heart rate throughout. Following that, though, the Pace 4 was mostly great for running. No major mess-ups during the start of workouts, or meandering readings during long runs. It would sometimes record noticeably higher max figures than my test Garmin watch, generally relating to short clips amid otherwise consistent figures.
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It was in other pursuits that the Coros Pace 4 didn’t quite do as well as that Garmin Forerunner 970 I used for comparison purposes. Gym visits end up producing too vague-looking a heart rate graph, the watch missing a lot of the short peaks involved with ordinary weight sessions.
The Pace 4 didn’t excel during a spin class either, showing a heart rate that was too low throughout. It’s good at the core stuff, but may struggle on occasion to provide super-accurate results in more challenging scenarios.
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I also find Coros’s sleep tracking relatively forgiving. It’s not that its estimates of your time sleeping are way off, more that its verdict on less-than-ideal nights is pretty lax. That said, if you have owned a Garmin and are tired of it always saying you’re on the verge of collapse thanks to poor sleep, maybe that’s not a bad thing.
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Should you buy it?
You want a lightweight watch with great battery life
Weighing just 32g with the nylon strap, the Pace 4 is one of the lightest in its category, but it’ll still last up to 19 days.
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With no downloadable maps or support for third-party apps, there are smarter watches out there at a similar cost.
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Final Thoughts
The Coros Pace 4 is a great, affordable fitness tracking watch for those who want a good spread of features but don’t want to spend a fortune in the process.
Highlights include long battery life, great comfort, and an OLED screen that is far sharper and punchier than that of the previous-generation Pace 3. Its dual-frequency GPS also holds up well, generating accurate and consistent distance data and reliable post-workout maps of your routes.
Heart rate tracking is just a little behind the very best, but it’s not worth dwelling on too much for those upgrading from a much older watch or getting their first serious fitness wearable.
How We Test
We thoroughly test every smartwatch we review. We use industry-standard testing to compare features properly and we use the watch as our main device over the review period. We’ll always tell you what we find and we never, ever, accept money to review a product.
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Worn as our main tracker during the testing period
Thorough health and fitness tracking testing
Benchmarked against other wearables
FAQs
Is the Coros Pace 4 waterproof?
The Pace 4 is rated for 5ATM water resistance, good enough for swimming but not diving.
Does the Coros Pace 4 have downloadable maps?
The Pace 4 does not support on-watch maps, only breadcrumb routes
The technology is designed to reduce strike zone disputes, long the source of baseball’s most heated arguments. Under the new system, each team receives two challenges per game and only loses a challenge if it is incorrect. In practice, this incentive has quickly reshaped game-day strategy – and last Saturday’s… Read Entire Article Source link
French fries are delicious, but notoriously unhealthy. A research team at the University of Illinois, however, has developed a deceptively straightforward method to keep the satisfying taste and crunch without requiring as much oil.
The cooking method combines traditional frying and microwave heating. Adding that microwave step could reduce the amount of oil used in the process, meaning you would absorb less fat with each bite. All the secrets to being able to cook fries in this way have been laid out in two studies published in Current Research in Food Science and The Journal of Food Science.
French Fries and Health
Although popular, fried foods contain high levels of fat, which is linked to several health problems, including obesity and hypertension. “Consumers want healthy foods, but at the time of purchase, cravings often prevail,” says Pawan Singh Takhar, author of one of the two studies. “The high oil content adds flavor, but it also contains a lot of energy and calories.”
It’s precisely with the goal of helping consumers make better food choices without feeling deprived that researchers have been trying to figure out how they can cook healthier french fries, achieving lower fat content without altering their taste and texture.
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One of the main difficulties in frying, as the studies explain, is preventing the oil from penetrating the food. In the early stages of the french fry process, in fact, the pores of the potato are filled with water, leaving no room for the oil.
As cooking continues, however, the water evaporates, creating empty spaces that allow the oil to be drawn in by negative pressure. Much of the frying process takes place under that negative pressure, which essentially increases the tendency of the oil to be sucked into the fries
A New Wavelength
In the new study, therefore, the researchers tried to figure out how to extend the time in positive pressure and reduce the period under negative pressure. “When we heat something in a traditional oven, the heat transfers from the outside to the inside, but a microwave oven heats from the inside to the outside because the microwaves penetrate everywhere in the material,” Takhar says.
Specifically, microwaves cause water molecules to oscillate, resulting in increased vapor formation and thus shifting the pressure profile toward positive values that prevent the oil from being easily absorbed.
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Microwave frying alone, however, would not produce the desired texture. “If only microwaving is used, the food turns out mushy,” says Takhar. In order to achieve crispness, frying and microwaving should be combined.
To achieve the right balance, the researchers carried out an experiment in which they specially designed a microwave fryer, monitoring temperature, pressure, volume, texture, moisture, and oil content of the chips. “We propose to combine the two methods in the same device. Traditional heating maintains crispness, while microwave heating reduces oil consumption,” the study concludes.
Mustafa Suleyman, CEO of Microsoft AI. (GeekWire File Photo / Kevin Lisota)
Microsoft is expanding its roster of in-house AI models, releasing a new speech-to-text system and making two existing models broadly available to developers for the first time.
The moves by Microsoft AI (MAI) are part of a broader effort by the company to expand its proprietary AI capabilities beyond its partnership with OpenAI, giving Microsoft more control over its own destiny in the competition against Google, Amazon, and others.
Microsoft announced MAI-Transcribe-1 on Thursday, a speech-to-text model that it says is the most accurate currently available. The company also released its existing voice and image generation models, known as MAI-Voice-1 and MAI-Image-2, for broad commercial use.
It’s Microsoft’s first major model release since a March reorganization, announced by CEO Satya Nadella, in which Microsoft AI CEO Mustafa Suleyman shifted away from day-to-day Copilot oversight to focus on frontier model development and superintelligence.
Suleyman told The Verge that the transcription model runs at “half the GPU cost of the other state-of-the-art models.” He told VentureBeat that the model was built by a team of just 10 people, and that Microsoft plans to eventually build a frontier large language model to be “completely independent” if needed.
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Microsoft also recently hired former Allen Institute for CEO Ali Farhadi and other top AI researchers from the Seattle-based institute to further bolster Suleyman’s team, as GeekWire reported last week.
MAI-Transcribe-1 is designed to handle noisy real-world conditions such as call centers and conference rooms, and Microsoft says it is testing integrations with Copilot and Teams. Microsoft says it offers the best price-performance of any large cloud provider, competing directly with OpenAI’s Whisper and Google’s Gemini on the FLEURS benchmark.
In a blog post, Suleyman called the model “not just the most accurate but also lightning fast.”
MAI-Voice-1 generates natural-sounding speech and now lets developers create custom voices from short snippets of sample audio. MAI-Image-2 ranks in the top three on the Arena.ai image generation leaderboard and is rolling out in Bing and PowerPoint.
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All three are available on the Microsoft Foundry developer AI platform and MAI Playground.
It’s been more than 50 years since NASA astronaut Harrison Schmitt took the famous Big Blue Marble photograph, showing a breathtaking vision of Earth taken aboard the Apollo 17 spacecraft on its way to the moon. Now, as the four-astronaut crew of the Artemis II mission heads toward the moon, more spectacular images are being released.
This stunning photo is perhaps the most reminiscent of the Big Blue Marble, showing Earth in all its fragile, lovely glory.
“That’s us!” NASA wrote in a post. The post also quoted astronaut Christina Koch as saying of Earth, “You guys look great.”
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In a reply to questions on the post, NASA wrote, “Two auroras (top right and bottom left) are visible in this image. Zodiacal light (bottom right), is also visible, as well as airglow from Earth’s atmosphere.”
Another neat photo from the Artemis mission shows the planet neatly bisected, with one side lit up by the sun and the other in darkness.
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This image of the Earth was taken by one of the Artemis II crew out the Orion’s window.
Reid Wiseman/NASA
“You look amazing, you look beautiful,” Victor Glover, Artemis II pilot, said of the views of Earth in a video call with ABC News.
A view of the Earth from NASA’s Orion spacecraft as it orbits above the planet during the Artemis II test flight.
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NASA
Another intriguing image shows part of the spacecraft itself. USA Today noted that “the image appears to show the bottom of Orion’s service module where its main engine and auxiliary thrusters are housed.”
The total workforce at Tesla’s factory outside Austin, Texas shrunk dramatically last year as the company suffered its second straight year of declining sales, according to a compliance report spotted by Austin American-Statesman.
Tesla went from employing 21,191 people at the factory in 2024 to 16,506 workers in 2025, a drop of 22%. That’s despite the company’s global workforce growing from 125,665 employees in 2024 to 134,785 employees in 2025, according to filings with the U.S. Securities and Exchange Commission.
It’s not clear which teams were most affected by Tesla scaling back its workforce at the plant. But the company has become one of the largest employers in the Austin area since it opened the factory in 2022. CEO Elon Musk also relocated Tesla’s headquarters to the factory in 2021 before it opened. The company has invested more than $6.3 billion in the facility to date, according to the new report.
Though the AirPods Max 2 offer new features, a teardown of the headphones shows they’re still plagued by the same flaws of the original 2020 model.
Apple’s AirPods Max 2 gained the H2 chip, but not much else.
Apple’s AirPods Max 2 debuted on March 16, with their core feature being the H2 chip. With it, Apple’s high-end headphones gained capabilities like Adaptive Audio, Conversation Awareness, and gesture controls, among others. Active Noise Cancellation was improved as well. However, as explained in our review, the AirPods Max 2 are an iterative upgrade, that ultimately leaves something to be desired. New features and ANC enhancements aside, Apple effectively delivered more of the same with its AirPods Max 2. Continue Reading on AppleInsider | Discuss on our Forums
Meta has paused all its work with the data contracting firm Mercor while it investigates a major security breach that impacted the startup, two sources confirmed to WIRED. The pause is indefinite, the sources said. Other major AI labs are also reevaluating their work with Mercor as they assess the scope of the incident, according to people familiar with the matter.
Mercor is one of a few firms that OpenAI, Anthropic, and other AI labs rely on to generate training data for their models. The company hires massive networks of human contractors to generate bespoke, proprietary datasets for these labs, which are typically kept highly secret as they’re a core ingredient in the recipe to generate valuable AI models that power products like ChatGPT and Claude Code. AI labs are sensitive about this data because it can reveal to competitors—including other AI labs in the US and China—key details about the ways they train AI models. It’s unclear at this time whether the data exposed in Mercor’s breach would meaningfully help a competitor.
While OpenAI has not stopped its current projects with Mercor, it is investigating the startup’s security incident to see how its proprietary training data may have been exposed, a spokesperson for the company confirmed to WIRED. The spokesperson says that the incident in no way affects OpenAI user data, however. Anthropic did not immediately respond to WIRED’s request for comment.
Mercor confirmed the attack in an email to staff on March 31. “There was a recent security incident that affected our systems along with thousands of other organizations worldwide,” the company wrote.
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A Mercor employee echoed these points in a message to contractors on Thursday, WIRED has learned. Contractors who were staffed on Meta projects cannot log hours until—and if—the project resumes, meaning they could functionally be out of work, a source familiar claims. The company is working to find additional projects for those impacted, according to internal conversations viewed by WIRED.
Mercor contractors were not told exactly why their Meta projects were being paused. In a Slack channel related to the Chordus initiative—a Meta-specific project to teach AI models to use multiple internet sources to verify their responses to user queries—a project lead told staff that Mercor was “currently reassessing the project scope.”
An attacker known as TeamPCP appears to have recently compromised two versions of the AI API tool LiteLLM. The breach exposed companies and services that incorporate LiteLLM and installed the tainted updates. There could be thousands of victims, including other major AI companies, but the breach at Mercor illustrates the sensitivity of the compromised data.
Mercor and its competitors—such as Surge, Handshake, Turing, Labelbox, and Scale AI—have developed a reputation for being incredibly secretive about the services they offer to major AI labs. It’s rare to see the CEOs of these firms speaking publicly about the specific work they offer, and they internally use codenames to describe their projects.
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Adding to the confusion around the hack, a group going by the well-known name Lapsus$ claimed this week that it had breached Mercor. In a Telegram account and on a BreachForums clone, the actor offered to sell an array of alleged Mercor data, including a 200-plus GB database, nearly 1 TB of source code, and 3 TBs of video and other information. But researchers say that many cybercriminal groups now periodically take up the Lapsus$ name and that Mercor’s confirmation of the LiteLLM connection means that the attacker is likely TeamPCP or an actor connected to the group.
TeamPCP appears to have compromised the two LiteLLM updates as part of an even larger supply chain hacking spree in recent months that has been gaining momentum, catapulting TeamPCP to prominence. And while launching data extortion attacks and working with ransomware groups, such as the group known as Vect, TeamPCP has also strayed into political territory, spreading a data wiping worm known as “CanisterWorm” through vulnerable cloud instances with Farsi as their default language or clocks set to Iran’s time zone.
“TeamPCP is definitely financially motivated,” says Allan Liska, an analyst for the security firm Recorded Future who specializes in ransomware. “There might be some geopolitical stuff as well, but it’s hard to determine what’s real and what’s bluster, especially with a group this new.”
Looking at the dark-web posts of the alleged Mercor data, Liska adds, “There is absolutely nothing that connects this to the original Lapsus$.”
Intel Core Ultra 270K Plus improves Adobe Premiere workflows by 15% over 9700X
Rendering in Cinebench and Blender achieves up to 23% faster results
250K Plus outperforms previous-generation AMD CPUs by roughly 35%
Intel’s latest Core Ultra 200S Plus series has drawn attention for delivering performance that is difficult to ignore, especially compared to older Intel models and some similarly priced AMDprocessors.
In testing by Puget Systems, the 270K Plus and 250K Plus both increase E-core counts, boost clocks, and raise maximum memory speeds, creating a tangible improvement over prior generations.
While AMD’s Ryzen 9 X3D chips remain strong in certain workloads, the new Intel chips close gaps in many professional applications.
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Performance in rendering and content creation
In CPU-based rendering in applications like Cinebench, V-Ray, and Blender, the Core Ultra 7 270K Plus demonstrates impressive results, performing up to 9% of the higher-priced 9950X3D, while frequently outpacing other CPUs in the same price bracket by up to 23%.
The 250K Plus also shows substantial gains, often matching or beating older high-end AMD chips, with improvements of about 35% over the 245K.
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These performance improvements tie not just to additional cores but also to enhancements in memory latency and bandwidth.
In Adobe Premiere, the 270K Plus performs as well as or slightly better than previous high-end Intel models, offering a 15% advantage over the 9700X.
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This trend continues across intraframe codecs (13% faster than 245K), RAW processing (30% faster than 9700X), and QuickSync-accelerated workflows.
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After Effects shows a slightly mixed picture: while the 270K Plus handles 2D tasks efficiently, 3D and tracking workloads favor AMD’s Ryzen chips.
DaVinci Resolve shows a similar balance, with the 270K Plus leading marginally in several CPU-bound tasks while GPU-bound processes show little difference between models.
In Unreal Engine shader compilation and Visual Studio builds, AMD’s 3D V-Cache processors maintain some lead, but the 270K Plus outperforms older Intel models by up to 100% in some cases.
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Compilation times in particular show major gains over the 9700X, with improvements ranging from 15% to nearly 100% depending on the test scenario.
The 250K Plus also shows strong relative performance, often outpacing CPUs that were previously considered superior at the same price point.
Tests using Llama and MLPerf benchmarks reveal modest CPU-level improvements – and while the integrated NPU could not be directly assessed, the 270K Plus consistently handles small-model inference faster than earlier Intel offerings.
This trend is consistent across content creation and professional workloads, where the new chips deliver strong performance gains without commanding a premium price.
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Considering its $299 price and the improvements in memory and E-core architecture, the 270K Plus makes the 9700X, which retails at around $340, look underwhelming.
The pitch is seductive in its simplicity: AI needs more power than terrestrial grids can supply, so move the data centres into orbit, where the sun never sets and the electricity is free. SpaceX, Blue Origin, and a growing constellation of startups are now racing to make that vision real. The problem, according to the scientists and engineers who would have to make the physics work, is that the vision skips several chapters of thermodynamics, economics, and orbital mechanics that have not yet been written.
SpaceX filed with the Federal Communications Commission on 30 January for permission to launch up to one million satellites into low Earth orbit, each carrying computing hardware that would collectively form what the company described as a constellation with “unprecedented computing capacity to power advanced artificial intelligence models.” The satellites would operate at altitudes between 500 and 2,000 kilometres, in orbits designed to maximise time in sunlight, and route traffic through SpaceX’s existing Starlink network. SpaceX requested a waiver of the FCC’s standard deployment milestones, which typically require half a constellation to be operational within six years.
Seven weeks later, Blue Origin filed its own application. Project Sunrise proposes 51,600 satellites in sun-synchronous orbits between 500 and 1,800 kilometres, complemented by the previously announced TeraWave constellation of 5,408 satellites providing ultra-high-speed optical backhaul. Where SpaceX’s filing emphasised raw scale, Blue Origin’s emphasised architecture: the system would perform computation in orbit and relay results to the ground through TeraWave’s mesh network.
The startup ecosystem is moving even faster.Starcloud, formerly Lumen Orbit, raised $170 million at a $1.1 billion valuationin March, becoming the fastest unicorn in Y Combinator history just 17 months after completing the programme. The company launched its first satellite carrying an Nvidia H100 GPU in November 2025 and filed with the FCC in February for a constellation of up to 88,000 satellites. Aethero, a defence-focused startup building space-grade computers with Nvidia Orin NX chips wrapped in radiation shielding, raised $8.4 million and is testing hardware on orbit this year.
The commercial logic rests on a genuine problem.Global data centre electricity consumptionreached roughly 415 terawatt-hours in 2024 and the International Energy Agency projects it could exceed 1,000 TWh by 2026, with accelerated AI servers driving 30 per cent annual growth. In Virginia alone, data centres consume 26 per cent of total electricity supply. Ireland’s share could reach 32 per cent by year’s end. The grid constraints are real, the permitting delays are real, and the political resistance to building more terrestrial capacity is real.
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What is also real, scientists argue, is the physics that makes orbital computing spectacularly difficult at any meaningful scale. The most fundamental challenge is heat. In space, there is no air to carry heat away from processors, only radiative cooling, which requires vast surface areas. Dissipating just one megawatt of thermal energy while keeping electronics at a stable 20 degrees Celsius demands approximately 1,200 square metres of radiator, roughly four tennis courts. A several-hundred-megawatt data centre, the minimum threshold for commercial relevance, would require radiators thousands of times larger than anything ever deployed on the International Space Station.
Radiation presents the second structural problem. Low Earth orbit exposes unshielded chips to cosmic rays and trapped particles that induce bit flips and permanent circuit damage. Radiation hardening adds 30 to 50 per cent to hardware costs and reduces performance by 20 to 30 per cent. The alternative, triple modular redundancy, means launching three copies of every chip, three times the cooling, three times the electricity, and three times the mass. Starcloud’s approach of flying commercial GPUs with external shielding is an interesting experiment, but no one has demonstrated that it works at scale or over hardware lifetimes measured in years rather than months.
Latency is the third constraint. A million satellites spread across orbital shells from 500 to 2,000 kilometres cannot achieve the tight coupling required for frontier model training, where inter-node communication latencies must remain in the microsecond range. Low Earth orbit introduces minimum latencies of several milliseconds for inter-satellite links and 60 to 190 milliseconds for ground-to-orbit round trips, compared to 10 to 50 milliseconds for terrestrial content delivery networks. That makes orbital infrastructure potentially viable for inference workloads, not for training, which is where the overwhelming majority of AI compute demand currently sits.
Then there is cost. IEEE Spectrum estimated that a one-gigawatt orbital data centre would cost upwards of $50 billion, roughly three times the cost of an equivalent terrestrial facility including five years of operation. Google has said that launch costs must fall to under $200 per kilogram before space-based computing begins to make economic sense. SpaceX’s current Starlink economics operate at roughly $1,000 to $2,000 per kilogram. Some analysts argue the true threshold for competing with terrestrial refresh economics is $20 to $30 per kilogram, a figure no credible projection places within the next two decades. The economics look even less favourable when set against thedeep-tech funding landscape on the ground, where terrestrial infrastructure projects can draw on established supply chains and proven unit economics.
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Even OpenAI’s Sam Altman, who explored a multibillion-dollar investment in rocket maker Stoke Space as a potential SpaceX competitor for orbital data centres, has publicly called the concept “ridiculous” for the current decade. Altman told journalists that the rough maths of launch costs relative to terrestrial power costs simply does not work yet, and he pointedly asked how anyone plans to fix a broken GPU in space.
The astronomical community adds a separate objection entirely. The vast majority of the roughly 1,000 public comments on SpaceX’s FCC filing urged the commission not to proceed. If approved, the constellation would place more satellites than visible stars in the sky for large portions of the night throughout the year,further militarising and commercialising an orbital environmentthat is already straining under the weight of existing megaconstellations.
None of this means orbital data centres will never exist. SpaceX’s Starship, if it achieves its cost targets, could fundamentally change the mass-to-orbit economics that currently make the concept unworkable. Starcloud’s incremental approach of flying small payloads and iterating on radiation performance is the kind of engineering pathway that occasionally produces breakthroughs. And the terrestrial grid constraints driving the interest are not going away.
But the gap between filing an FCC application for a million satellites and actually making orbital computation economically competitive with a warehouse full of GPUs in Iowa is not measured in years. It is measured in physics problems thatthe current pace of AI infrastructure investmentcannot shortcut, no matter how many billionaires are willing to try. The question scientists are asking is not whether space data centres are theoretically possible. It is why, given the magnitude of the unsolved engineering, anyone is treating them as a near-term solution to a problem that requires near-term answers. The sky, it turns out, is not the limit. The radiator is.
Countries including Nigeria, Laos and New Zealand – and the US state of California – are all piloting their own versions of a digital ID platform, as governments across borders try to bolster security and make administration smoother.
The digital wallet makes up a key part of the Government’s Digital Public Services Plan 2030, which aims to use digital technology to make accessing public services easier and more efficient.
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It facilitates identity management that residents should be able to use within the EU to access public and private services. The wallet can be used both offline and online, and will allow users to self-manage how their data is shared.
The ID can help obtain a marriage certificate or register for key welfare supports, and holders can also obtain a digital version of their birth certificates, driving licences and other official documents. The wallet will also be used to verify age on online platforms, amid debates in the region on a ban for social media for those under 16.
It is also expected to reduce the need to repeat the same information to different Government departments and make everyday interactions with state administration more seamless.
The EU mandates that all member states must make a digital wallet available to their citizens by the end of 2026. The Irish wallet will be developed to EU digital identity standards, the Government said.
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The digital wallet will “make it simpler for people to verify their identity, apply for supports and access entitlements”, said Minister for Public Expenditure, Infrastructure, Public Service Reform and Digitalisation Jack Chambers, TD.
“The wallet is designed so that all personal data is fully protected, and the user stays in control of what information they put in the wallet and choose to share. Only the details needed for a service will be shared, and nothing more.”
Minister of State at the Department of Public Expenditure, Infrastructure, Public Service Reform and Digitalisation Frank Feighan, TD said that the wallet will be “a crucial element of the Government’s overall portfolio of digital services”.
He added: “It will be able to facilitate secure age verification capability as set out in Digital Ireland and the implementation of the Online Safety Code, under which designated platforms must have age verification measures in place to help protect, in particular, children and young people from online harm.”
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