For about four years now, AMD has offered special "X3D" variants of its high-end desktop processors with an extra 64MB of L3 cache attached, an addition that disproportionately benefits games. AMD calls this "3D V-Cache" because it stacks the cache directly on top of (for Ryzen 5000 and 7000) or beneath (for Ryzen 9000) the CPU die.

The 12- and 16-core Ryzen chips have their CPU cores split between two silicon chiplets, which has historically made the 7900X3D, 7950X3D, 9900X3D, and 9950X3D a bit weird. One of their two CPU chiplets has the 64MB of 3D V-Cache attached, and one does not. AMD relies on its driver software to make sure that software that benefits from the extra cache is run on the V-Cache-enabled CPU cores, which usually works well but is occasionally error-prone .

Enter the Ryzen 9 9950X3D2 Dual Edition, a mouthful of a chip that includes 64MB of 3D V-Cache on both processor dies, without the hybrid arrangement that has defined the other chips up until now. This gives the chip a grand total of 208MB of cache—16MB of L2 cache, the 32MB of L3 cache built into each of the two CPU dies (for a total of 64MB), and then another 64MB chunk of 3D V-Cache per die. In total, AMD says the new chip should be as much as 10 percent faster than the 9950X3D in games and other apps that benefit from the extra cache.

Read full article

Comments

Welcome to Edition 8.35 of the Rocket Report! The headlines this week are again dominated by the big changes afoot in NASA's exploration program, with the announcement of a Moon base and a nuclear-powered rocket to Mars. The shakeups come as the agency is just a week away from launching Artemis II, a circumlunar flight carrying a crew of four around the Moon. The Ars space team will be writing extensively about this mission in the days ahead, and we may skip the Rocket Report next week to focus on our Artemis II coverage.

As always, we welcome reader submissions . If you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

NASA announces nuclear rocket demo. NASA's announcement Tuesday that it will "pause" work on a lunar space station and focus on building a surface base on the Moon was no big surprise to anyone paying attention to the Trump administration’s space policy. But what should NASA do with hardware already built for the Gateway outpost? NASA spent close to $4.5 billion on developing a human-tended complex in orbit around the Moon since the Gateway program’s official start in 2019. There are pieces of the station undergoing construction and testing in factories scattered around the world. The centerpiece of Gateway, called the Power and Propulsion Element, is closest to being ready for launch. NASA’s rejigged exploration roadmap, revealed Tuesday in an all-day event at NASA headquarters in Washington, calls for repurposing the core module for a nuclear-electric propulsion demonstration in deep space, Ars reports .

Read full article

Comments

On Thursday, Elon Musk lost his lawsuit alleging that advertisers violated antitrust law by colluding on an ad boycott after he took over Twitter, gutted content moderation teams, and disbanded the Trust and Safety Council.

In her opinion , US District Judge Jane Boyle wrote that the lawsuit was dismissed because Musk failed to state a claim. His arguments that advertisers acted against their own best interests by avoiding advertising on his platform, now called X, did not plead facts showing that consumers were harmed. Without consumer harm, there can be no antitrust violation, the judge wrote, deeming the ad boycott perfectly legal.

"The very nature of the alleged conspiracy does not state an antitrust claim, and the Court therefore has no qualm dismissing with prejudice," Boyle said. At one point, she emphasized, "the question underlying antitrust injury is whether consumers—not competitors—have been harmed."

Read full article

Comments

Spotify and major record labels are seeking a $322 million default judgment from Anna's Archive, which hasn't responded to court proceedings over its scraping of millions of music files from Spotify's streaming service.

The music companies are also seeking a permanent injunction in an attempt to eject the Anna's Archive website from the Internet by cutting off its access to domain and hosting providers. But the plaintiffs previously obtained a similar injunction that proved to be little more than an inconvenience for the shadow library, which has changed providers and said it's working on bolstering its ability to remain online in the face of court orders.

The music companies sued Anna’s Archive in late December and quickly obtained a court order that shut down the shadow library's .org domain, though Anna's Archive has remained online elsewhere. Anna's Archive has filed no response to the lawsuit in US District Court for the Southern District of New York, and the clerk of court last month certified that the defendant is in default.

Read full article

Comments

P3 Global Intel claims that it has "quickly become the new standard in tip management for Crime Stoppers programs, [Law Enforcement Agencies], and government agencies helping to solve and prevent crimes around the world."

Its software does what it says on the tin: It accepts tips from the general public and then manages conversations between law enforcement and the tipper. Many of these tips are, by their very nature, extremely sensitive, and disclosure of the tip could imperil people's lives. P3 promises on its websites that "your anonymity is protected at all times."

But earlier this month, hackers calling themselves the, err, "Internet Yiff Machine" released 93GB of data that they claim was pilfered from P3's tip-taking system.

Read full article

Comments

The Centers for Disease Control and Prevention hasn't had a director since August, and now it's without even a temporary one after the Trump administration blew through a federal deadline on Wednesday to nominate someone for the permanent role.

According to federal law, there's a 210-day limit on a Senate-confirmed position being filled by someone in an acting capacity. The clock started when anti-vaccine Health Secretary Robert F. Kennedy Jr. fired Susan Monarez from her Senate-confirmed role as CDC director in late August—allegedly after she refused to rubber-stamp changes to CDC vaccine recommendations. Until yesterday, Jay Bhattacharya, who heads the National Institutes of Health, had stepped in to also be the acting director of the CDC. But he can no longer hold the position officially.

The void of leadership comes as the Trump administration is working to restrain Kennedy after finding his relentless anti-vaccine agenda is widely unpopular and potentially harmful to Republicans in the upcoming midterm elections.

Read full article

Comments

Netflix isn't preparing for a multibillion acquisition anymore, but it's still raising prices.

As first spotted by Android Authority today, Netflix now lists its ad-supported plan as costing $9 per month, up from $8/month. The Standard, ad-free plan went up from $18/month to $20/month, and the Premium ad-free plan (which supports viewing from four, instead of two, devices simultaneously, 4K, and spatial audio) went from $25/month to $27/month.

For comparison, Disney+ starts at $12/month with commercials and $19/month without.

Read full article

Comments

With a new war in the Middle East driving up gas prices, American drivers are once again remembering that electric vehicles are much cheaper to operate and therefore worth considering. Buying a brand-new EV might not be the best way to save money, but the good news is that the used EV market continues to grow, and for the buyer looking to spend between $15,000–$20,000 on something electric, we're starting to hit a real sweet spot.

Over the past few weeks, we've looked at used EVs on a smaller budget. If you don't need much range, even $5,000 will get you behind the wheel of a Nissan Leaf. At $10,000 , BMW's interesting i3 becomes affordable, as does the Chevrolet Bolt, although expect examples to have some mileage on them. For $15,000 you can find newer Bolts and bigger-batteried i3s, as well as some of Hyundai and Kia's smaller or older EVs.

Once we jump up into the next (arbitrary) price bracket—$15,000 to $20,000—many of the newer, longer-range EVs that debuted post-pandemic are now affordable.

Read full article

Comments

We all need a little validation now and then from friends or family, but sometimes too much validation can backfire—and the same is true of AI chatbots. There have been several recent cases of overly sycophantic AI tools leading to negative outcomes, including users harming themselves and/or others . But the harm might not be limited to these extreme cases, according to a new paper published in the journal Science. As more people rely on AI tools for everyday advice and guidance, their tendency to overly flatter and agree with users can have harmful effects on those users' judgment, particularly in the social sphere.

The study showed that such tools can reinforce maladaptive beliefs, discourage users from accepting responsibility for a situation, or discourage them from repairing damaged relationships. That said, the authors were quick to emphasize during a media briefing that their findings were not intended to feed into "doomsday sentiments" about such AI models. Rather, the objective is to further our understanding of how such AI models work and their impact on human users, in hopes of making them better while the models are still in the early-ish development stages.

Co-author Myra Cheng, a graduate student at Stanford University, said she and her co-authors were inspired to study this issue after they began noticing a pronounced increase in the number of people around them who had started relying on AI chatbots for relationship advice—and often ended up receiving bad advice because the AI would take their side no matter what. Their interest was bolstered by recent surveys showing nearly half of Americans under 30 have asked an AI tool for personal advice. "Given how common this is becoming, we wanted to understand how an overly affirming AI advice might impact people's real-world relationships," said Cheng.

Read full article

Comments