AMD’s X3D-series Ryzen chips have become popular with PC gamers because games in particular happen to benefit disproportionately from the chips’ extra 64MB of L3 cache memory. But that extra memory occasionally comes with extra headaches. Not long after they were released earlier this year, some early adopters started having problems with their CPUs, ranging from failure to boot to actual physical scorching and burnout—the problems were particularly common for…

Allan Brooks, a 47-year-old corporate recruiter, spent three weeks and 300 hours convinced he’d discovered mathematical formulas that could crack encryption and build levitation machines. According to a New York Times investigation, his million-word conversation history with an AI chatbot reveals a troubling pattern: More than 50 times, Brooks asked the bot to check if his false ideas were real. More than 50 times, it assured him they were. Brooks…

A hobbyist developer building AI language models that speak Victorian-era English “just for fun” got an unexpected history lesson this week when his latest creation mentioned real protests from 1834 London—events the developer didn’t know had actually happened until he Googled them. “I was interested to see if a protest had actually occurred in 1834 London and it really did happen,” wrote Reddit user Hayk Grigorian, who is a computer…

Samsung provided ground transportation from Brooklyn, New York, to Englewood Cliffs, New Jersey, so Ars could demo its Micro RGB TV. Ars does not accept paid editorial content. ENGLEWOOD CLIFFS, New Jersey—Micro LED is still years away, but the next best thing is taking shape right now. A $30,000 price tag and 114.5-inch diagonal size makes the Samsung “Micro RGB” TV  that I demoed this week unattainable for most. But…

Last Thursday, OpenAI CEO Sam Altman told reporters at a private dinner that investors are overexcited about AI models. “Someone” will lose a “phenomenal amount of money,” he said, according to The Verge. The statement came as his company negotiates a secondary share sale at a $500 billion valuation—up from $300 billion just months earlier. “Are we in a phase where investors as a whole are overexcited about AI? My…

Apple has announced another price increase for its Apple TV+ video-streaming service. Starting today, a new monthly subscription will cost $12.99; it was previously $9.99. Existing subscribers will see the new price take effect during their next billing cycle. Annual plans and Apple TV+’s inclusion in Apple One at current pricing will remain unchanged. The price of Apple TV+ has practically doubled since its launch a few years ago. There…

When updating a piece of software as large and complex and old as Windows, you’re inevitably going to break something every once in a while. Microsoft tracks known issues here—generally they affect lesser-used features or obscure edge cases, but every once in a while you run into something bigger and more disruptive. August’s updates have introduced a couple of more noticeable problems. The first was caused by update KB5063875, a…

Sony will join Microsoft and Nintendo in raising US prices across its entire game console lineup, the company announced today. Pricing for all current versions of the PlayStation 5 console will increase by $50 starting tomorrow. The price of the PS5 Digital Edition will increase from $450 to $500; the standard PS5 will increase from $500 to $550; and the PS5 Pro will increase from $700 to $750. If you’ve…

The folks at Raspberry Pi have announced a new touchscreen component for people using boards to create miniature touchscreen appliances: The 5-inch Raspberry Pi Touch Display 2 is a 720p IPS multi-touch screen that’s natively supported by the Raspberry Pi OS and includes mounting holes on the back to make it easy to build integrated all-in-one devices. The new screen will cost $40 and is available starting today from Pi…

Sometimes I go longer than I intend without writing an updated version of our PC building guide. And while I could just claim to be too busy to spend hours on Newegg or Amazon or other sites digging through dozens of near-identical parts, the lack of updates usually correlates with “times when building a desktop PC is actually a pain in the ass.” Through most of 2025, fluctuating and inflated graphics card…