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Basic Facts about GPUs

Basic facts about GPUs last updated: 2025-06-18 I’ve been trying to get a better sense of how GPUs work. I’ve read a lot online, but the following posts were particularly helpful: This post collects various facts I learned from these resources. Acknowledgements: Thanks to Alex McKinney for comments on independent thread scheduling. Table of Contents Compute and memory hierarchy A GPU’s design creates an imbalance since it can compute much faster than it can access its main memory. An NVID

Why the Shortest Day of Your Life Could Happen This Summer

Earth might be about to spin out its fastest day on record. And no one knows why. On July 9, 22, or August 5, our planet might complete the fastest spin on its axis ever recorded, breaking last year’s record, according to Graham Jones, an astrophysicist writing for timeanddate.com—a website dedicated to tracking time and time zones. According to the website, Earth spins faster when the Moon’s orbit takes it significantly north or south relative to the equator (among other factors). The differe

Sony Is Practically Giving Away 4.5-Star Rated Wired On-Ear Headphones for Under $10 to Clear Out Stock

Not every pair of headphones needs to have noise cancellation, touch controls, or a premium price tag to be worth your money. Sometimes, the best pair is the one that just gets the job done. That means they produce sound and they connect to your devices. It doesn’t have to get any more complicated than that. If you’re looking for that kind of everyday listening solution, the Sony ZX Series Wired On-Ear Headphones are worth buying, especially when you can get them at such a great price. Head to

Fewer Identity Theft Reports, Larger Losses: Here's What to Make of Latest Research

Is your data protected? Getty The Identity Theft Resource Center said Tuesday that fewer people contacted it for help over the past year, but also warned that new technologies, including artificial intelligence, are making it increasingly easier for cybercriminals to successfully victimize people. The ITRC mentions that, while fewer people are reporting crimes, the crimes that are reported represent greater financial loss. According to the ITRC's 2025 Trends In Identity Report, a total of 7,58

Dealing With Spotty Internet? A Network Switch Might Fix It

Your home internet connection can run just fine without a network switch, so is it essential to have one? I spoke with an expert from Netgear to find out the benefits of using one. Spoiler: It can enhance your connection. If you’re serious about optimizing your internet connection, using a network switch could take it to the next level. However, there are details to consider before investing in a network switch. A network switch is a device you connect to your router. It opens up more Ethernet

This New Smart Lock From Yale Pairs With Video Doorbells in Ways I Haven't Seen Before

Google Nest and Yale partnered before on the Nest x Yale smart lock, so I wasn't surprised to see the spring announcement of a new lock from Yale designed to work even more closely with Nest products, especially the Nest Doorbell, a personal favorite of mine. Called the Yale Smart Lock with Matter, it's now available for $190. The Matter standard gives the new lock compatibility with platforms like Apple Home and Alexa, but the real value lies in its connections to the Nest Doorbell. Not only d

Rocket Money Review 2025: CNET's Editor's Choice Winner for Best Budgeting App

If you're looking for a budgeting app, Rocket Money should be at the top of your consideration list. Easy to use, affordable and chock-full of features, Rocket Money is a great fit for the average budgeter looking to get a handle on their finances. That's why it won CNET's 2024 Editors' Choice award for best overall budgeting app. Here's a look at what you'll get with Rocket Money. 9.4 Rocket Money Buy at Rocket Money Like Affordable Affordable Easy to use Easy to use Savings goals Savings

Monarch Money Review 2025: Best Budgeting App for Couples

Managing your money can be hard enough, but managing money as a couple can be especially tricky. Fortunately, a budgeting app can make things easier. Monarch Money is designed for joint budgeters, with features like shared goal tracking and monthly reports to help you stay on the same page. The app gets great ratings with Apple and Android users, with 4.9 stars out of 5 on the App Store and 4.7 stars on Google Play. I tested it out to see if these scores were warranted, and I was impressed. Her

UK looking to loosen Google’s control of its search engine

The UK’s competition regulator is proposing to loosen Google’s control of its search engine in the first application of Britain’s tough new digital market rules. The Competition and Markets Authority said on Tuesday that Google could be required to implement new “fair ranking” measures in its search results and give publishers more control over how it uses their content, including in output generated by artificial intelligence. The CMA said it was minded to hand Google “strategic market status

A week in Xbox VR with Microsoft and Meta’s new $399 headset

is a senior editor and author of Notepad , who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft and Meta announced an Xbox-branded Quest VR headset last year, and it’s going on sale today for $399.99. The Meta Quest 3S Xbox Edition is a custom colorway VR headset that comes bundled with an Xbox wireless controller, matching Touch Plus controllers, and three months of Xbox Game Pass Ultimate. I’ve been using the Quest 3S Xbox Edition over the past week, and I wa

8BitDo’s controllers will work with the Switch 2 after a firmware update

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. 8BitDo announced that eight of its flagship controllers are now compatible with the Nintendo Switch 2 following a firmware update. Although some companies had early access to the Switch 2’s specs to build accessories like cases and screen protectors, many had to wait until launch day to ensure their devices were compatible with the new console.

Tesla’s robotaxi reality check

After years of grand promises about how robotaxis would change the way we buy and use our cars, Tesla finally launched its taxi service. In one small portion of one city. With only a few cars and a few riders. Plus safety monitors in the passenger seat. Caution is a good thing in this industry, but what does all this say about where Tesla’s self-driving efforts really stand? After that, The Verge’s Allison Johnson joins the show to dive deep on MVNOs. In the United States, the cell market is co

These battery-powered 4K cameras record 24/7

is a smart home reporter who’s been testing connected gadgets since 2013. Previously a contributor to Wirecutter, Wired, Dwell, and US News. TP-Link just launched a bunch of new security cameras for its Tapo smart home brand, including a 4K-capable line for outdoors and a slew of inexpensive pan and tilt cams that can be used indoors and out. The company is also finally releasing its Tapo HomeBase H500 central hub, first shown at CES 2024, which brings facial recognition and expanded local stor

US House bans WhatsApp from staff devices

In Brief The U.S. House of Representatives’ top official has banned WhatsApp from government-issued devices used by its staff, saying the app poses potential security risks, Reuters reported, citing a memo sent to House staff. “The Office of Cybersecurity has deemed WhatsApp a high risk to users due to the lack of transparency in how it protects user data, absence of stored data encryption, and potential security risks involved with its use,” Reuters reported the memo as saying. The memo inst

How a data processing problem at Lyft became the basis for Eventual

When Eventual founders Sammy Sidhu and Jay Chia were working as software engineers at Lyft’s autonomous vehicle program, they witnessed a brewing data infrastructure problem — and one that would only become larger with the rise of AI. Self-driving cars produce a ton of unstructured data from 3D scans and photos to text and audio. There wasn’t a tool for Lyft engineers that could understand and process all of those different types of data at the same time — and all in one place. This left engine

MIT student uses AI and printing tech to revolutionize art restoration

TL;DR: A new chapter in art conservation is unfolding at the Massachusetts Institute of Technology, where mechanical engineering graduate student Alex Kachkine has developed a technique that could dramatically change how damaged paintings are restored. For centuries, art restoration has been a painstaking, manual craft, with conservators spending months or even years meticulously retouching faded or cracked works, often matching colors by hand for thousands of tiny regions. Now, artificial intel

Robots are transforming warehouse automation and ending back-breaking truck loading

The big picture: As the warehouse floor becomes increasingly automated, robots now handle the most punishing aspects of logistics, while people focus on oversight, problem-solving, and continuous improvement. With companies like DHL, FedEx, UPS, and Walmart investing heavily in robotics, the era of the backbreaking warehouse job may soon be history. The last stronghold of human labor in warehouses – the grueling job of loading and unloading trucks – is rapidly giving way to a new generation of

Meta is absent from SF Pride this year, as tech industry retreats from public support of LGBTQ+

Parade goers hold Pride flags during the annual Pride Parade in San Francisco on Sunday, June 29, 2024. Minh Connors | San Francisco Chronicle | Hearst Newspapers | Getty Images Meta CEO Mark Zuckerberg is staying mum these days when it comes to the LGBTQ+ community. It wasn't always that way. San Francisco Pride Executive Director Suzanne Ford told CNBC she remembers when Zuckerberg personally called the nonprofit to ensure that the company then known as Facebook had a spot at the annual event

Topics: ford pride said sf tech

Tesla Robotaxi Terrifyingly Jerks Wheel Back and Forth While Carrying Passenger

Tesla's Robotaxi service is finally, actually here. And for the most part, the launch, which took place this weekend, has been pretty uneventful. A spate of Tesla "influencers" have already uploaded videos of their first rides depicting the driverless cabs — though not supervisor-less, as each one comes with a human "safety monitor" silently riding shotgun — roaming the streets of Austin, Texas. Nothing to write home about. Except for at least one genuinely bizarre incident. In a video uploaded

The Download: Namibia’s hydrogen hopes, and fixing AI evaluation

Factories have used fossil fuels to process iron ore for three centuries, and the climate has paid a heavy price: According to the International Energy Agency, the steel industry today accounts for 8% of carbon dioxide emissions. But it turns out there is a less carbon-­intensive alternative: using hydrogen. Unlike coal or natural gas, which release carbon dioxide as a by-product, this process releases water. And if the hydrogen itself is “green,” the climate impact of the entire process will

Spotify’s much hated ‘Create’ button could soon go away, if you want it to (APK teardown)

Ryan Haines / Android Authority TL;DR Spotify introduced a “Create” button in its app’s bottom navigation, but the move sparked widespread user backlash. Code within the latest app release suggests the company is listening to user feedback, as it could soon give users an option to hide the Create button. This opt-out toggle is not yet live, nor has Spotify officially confirmed it. Old habits die hard, and Spotify is learning this the hard way. The service introduced the “Create” button on it

This $400 budget gaming phone runs the same chip as the Nothing Phone 3

Hadlee Simons / Android Authority TL;DR POCO has launched the POCO F7 globally today. The new phone offers a powerful Snapdragon 8s Gen 4 chipset and a 6,500mAh or 7,550mAh battery, depending on the region. Expect to pay a starting price of $399 or £389 for the POCO F7. The POCO F5 and POCO F6 were two of the best gaming phones on a budget as they offered powerful chips for the price. Now, the Xiaomi sub-brand is back with the POCO F7. The POCO F7 continues the trend of offering great perfo

Snapdragon 8s Gen 4 benchmarks show why Nothing Phone 3 might not be truly Elite

Hadlee Simons / Android Authority Nothing announced last week that its Nothing Phone 3 will be powered by Qualcomm’s Snapdragon 8s Gen 4 chipset. This is a somewhat polarizing move in light of the company marketing the phone as a “true” or “real” flagship, where customers would expect a top-flight Snapdragon 8 Elite processor. However, the POCO F7 just launched today, and it’s the first global phone powered by the Snapdragon 8s Gen 4. So, should you be worried about the Nothing Phone 3’s horse

This theory about Jony Ive’s AI hardware device seems increasingly likely

When Jony Ive and Sam Altman teased their upcoming AI hardware device, we noted how mysterious they were being about its form factor. While some were suggesting that it was a wearable, I said I felt pretty sure it wasn’t, and that’s now been confirmed by a court filing. A 9to5Mac reader last month made a plausible suggestion, and the latest development seems to me to add weight to the idea … What we knew before the court filing Both Ive and Altman had long made it clear their device wasn’t a

T-Mobile's Starlink satellite service launches on July 23

T-Mobile's satellite service, or simply called T-Satellite, with Starlink will be available across the US starting on July 23, even to customers of other carriers. The company said the service can cover 500,000 square miles of area that traditional carriers can't reach, which are mostly remote locations far from cell towers. T-Satellite will support texting for both Android and iOS devices at launch. Android owners will also be able to send MMS, images and short audio clips from the start, while

Early Prime Day deals include $37 off our favorite air purifier

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . We now know that the 2025 edition of Amazon's blockbuster Prime Day sales event will start on July 8, and it's set to be bigger than ever as it will run for four days. But you don't need to wait until then for tasty deals. There will be plenty in the lead up to the event, including thi

Topics: 400s air core day deals

UK proposes greater regulation for Google's search practices

The UK might introduce new regulations for Google. The country's Competition and Markets Authority (CMA) has proposed designating the company's search services with "strategic market status" (SMS). In doing so, the regulatory body could direct Google to create fairer business rankings on search, for instance. The CMA launched an antitrust investigation into Google Search in January — its first probe under the UK's Digital Markets, Competition and Consumers (DMCC) Act. Concerns include search ad

Topics: cma google search sms uk

2 clever ways Android 16 guards your security - but you need to enable them

Jack Wallen / Elyse Betters Picaro / ZDNET Google released Android 16 a bit earlier than expected, and although it was missing some crucial features, there are key additions to the platform that go a long way to improve security. This was an important step forward, as the need for improved security grows every year. Without companies like Google, Apple, and others upping the ante on security, the mobile space would wind up the wild west of the technological landscape, with ne'er-do-wells poppi

Switching Pip to Uv in a Dockerized Flask / Django App

Switching pip to uv in a Dockerized Flask / Django App I noticed about a 10x speed up across a number of projects, we'll avoid using a venv and run things as a non-root user too. Prefer video? Here is it on YouTube. I was surprised at how painless it was to switch things over. You can see the git diffs to make the change for both of my example Flask and Django projects. In this post we’ll go into more detail about these changes and how to use a few uv commands. Let’s start with defining our

Topics: file install lock run uv