AMD has announced three new additions to its desktop Ryzen CPU line: Ryzen 9 3900XT, Ryzen 7 3800XT, and Ryzen 5 3600XT. Ars Technica reports on the technical details: The new CPU designs take advantage of newly optimized 7nm process technology to offer higher performance at the same TDPs as Ryzen 3000 designs. The new 3000XT CPUs are drop-in replacements on AM4 motherboards that supported Ryzen 3000 CPUs and offer small (up to 4 percent) single-threaded performance improvements over their Ryzen 3000 counterparts. Although the single-threaded performance improvements are small, the margins between CPUs in that stat tend to be razor-thin, and AMD says they're enough to take the coveted single-thread performance crown away from Intel. A 4 percent improvement to the Ryzen 9 3900X score shown on the CGDirector leaderboard would come out to 531 -- a few points higher than CGDirector's posted score for the i9-10900K, although a few points lower than our own Cinebench R20 result for that processor, using an NZXT fluid-cooler and Primochill Praxis open-air bench.

AMD has determined that most consumers are discarding the free Wraith Spire coolers in favor of higher-performance third-party cooling systems -- so in the 3000XT line, only the Ryzen 5 3600XT retains the included OEM cooler. Ryzen 9 3900XT and Ryzen 7 3800XT will require the consumer to supply their own cooling solution, and AMD recommends "a minimum 280mm radiator or equivalent air cooling." The company offers the existing 3950X compatibility list for those who aren't sure what to buy. AMD also announced a new motherboard chipset for Ryzen 3000 desktop processors: the A520. A new version of AMD's StoreMI software will also be coming soon.

AMD's press release can be read here.

The history of hacking has largely been a back-and-forth game, with attackers devising a technique to breach a system, defenders constructing a countermeasure that prevents the technique, and hackers devising a new way to bypass system security. On Monday, Intel is announcing its plans to bake a new parry directly into its CPUs that's designed to thwart software exploits that execute malicious code on vulnerable computers. From a report: Control-Flow Enforcement Technology, or CET, represents a fundamental change in the way processors execute instructions from applications such as Web browsers, email clients, or PDF readers. Jointly developed by Intel and Microsoft, CET is designed to thwart a technique known as return-oriented programming, which hackers use to bypass anti-exploit measures software developers introduced about a decade ago. While Intel first published its implementation of CET in 2016, the company on Monday is saying that its Tiger Lake CPU microarchitecture will be the first to include it. ROP, as return-oriented programming is usually called, was software exploiters' response to protections such as Executable Space Protection and address space layout randomization, which made their way into Windows, macOS, and Linux a little less than two decades ago. These defenses were designed to significantly lessen the damage software exploits could inflict by introducing changes to system memory that prevented the execution of malicious code. Even when successfully targeting a buffer overflow or other vulnerability, the exploit resulted only in a system or application crash, rather than a fatal system compromise.

Intel has published a news release on its website stating that Jim Keller has resigned from the company, effective immediately, due to personal reasons. From a report: Jim Keller was hired by Intel two years ago to the role as Senior Vice President of Intel's Silicon Engineering Group, after a string of successes at Tesla, AMD, Apple, AMD (again), and PA Semiconductor. As far as we understand, Jim's goal inside Intel was to streamline a lot of the product development process on the silicon side, as well as providing strategic platforms though which future products can be developed and optimized to market. We also believe that Jim Keller has had a hand in looking at Intel's manufacturing processes, as well as a number of future products. Intel's press release states that Jim Keller is leaving the position on June 11th due to personal reasons. However, he will remain with the company as a consultant for six months in order to assist with the transition.

Academics from a university in the Netherlands have published details today about a new vulnerability in Intel processors. From a report: The security bug, which they named CrossTalk, enables attacker-controlled code executing on one CPU core to leak sensitive data from other software running on a different core. The Vrije University's Systems and Network Security Group (VUSec) says the CrossTalk vulnerability is another type of MDS (microarchitectural data sampling) attack. MDS attacks target user data while in a "transient" state, as it's being processed inside the CPU and its many data-caching systems. More specifically, CrossTalk attacks data while it's being processed by the CPU's Line Fill Buffer (LBF), one of these aforementioned CPU cache systems. According to the VUSec team, the LBF cache actually works with a previously undocumented memory "staging buffer" that is shared by all CPU cores.

Apple is preparing to announce a shift to its own main processors in Mac computers, replacing chips from Intel, as early as this month at its annual developer conference, Bloomberg reported Tuesday, citing people familiar with the plans. From the report: The company is holding WWDC the week of June 22. Unveiling the initiative, codenamed Kalamata, at the event would give outside developers time to adjust before new Macs roll out in 2021, the people said. Since the hardware transition is still months away, the timing of the announcement could change, they added, while asking not to be identified discussing private plans. The new processors will be based on the same technology used in Apple-designed iPhone and iPad chips. However, future Macs will still run the macOS operating system rather than the iOS software on mobile devices from the company. Bloomberg News reported on Apple's effort to move away from Intel earlier this year, and in 2018.

Long-time Slashdot reader mrflash818 ("Linux geek since 1999") shared a ZDNet article pointing out that SpaceX's Falcon 9 rocket has an onboard operating system that's "a stripped-down Linux running on three ordinary dual-core x86 processors. The flight software itself runs separately on each processor and is written in C/C++."

Interestingly, back in 2018 a Slashdot headline asked whether C++ was "a really terrible language," and Elon Musk replied on Twitter with his single-word answer. "Yes."

ZDNet points out that "ordinary" processors are often needed because of the multi-year development time for the spacecraft they power. Their article notes that the International Space Station actually runs on 1988-vintage 20 MHz Intel 80386SX CPUs: Of course, while those ancient chips work for the station's command and control multiplexer/demultiplexer, they're not much good for anything else. For ordinary day-in and day-out work, astronauts use HP ZBook 15s running Debian Linux, Scientific Linux, and Windows 10. The Linux systems act as remote terminals to the control multiplexer/demultiplexer, while the Windows systems are used for email, the web, and fun.

Usually, though, chips that go into space aren't ordinary chips. CPUs that stay in space must be radiation-hardened. Otherwise, they tend to fail due to the effects of ionizing radiation and cosmic rays. These customized processors undergo years of design work and then more years of testing before they are certified for spaceflight. For instance, NASA expects its next-generation, general-purpose processor, an ARM A53 variant you may know from the Raspberry Pi 3, to be ready to run in 2021...

The Dragon spacecraft's touchscreen interface is rendered using Chromium and JavaScript. If something were to go wrong with the interface, the astronauts have physical buttons to control the spacecraft.
Today the SpaceX software team answered questions on Reddit, revealing they use Chromium with a reactive library developed in-house, and that "All of our on-board computers either run Linux (with the PREEMPT_RT patch) or are microcontrollers that run bare-metal code...." Later they emphasized that for the Falcon 9 and Dragon software, "All of the application-level autonomous software is written in C++. We generally use object oriented programming techniques from C++, although we like to keep things as simple as possible.

"We do use open source libraries, primarily the standard C++ library, plus some others. However, we limit our use of open source libraries to only extremely high quality ones, and often will opt to develop our own libraries when it is feasible so that we can control the code quality ourselves."

AMD "has a potent combination of both CPU and GPU technologies," writes Slashdot reader MojoKid, that "can play well in the laptop market especially, where a tight coupling of the two processing engines can mean both performance and cost efficiencies." One of the first all-AMD laptops to hit the market powered by the company's new Ryzen 4000 mobile processors is the Dell G5 15 SE, it's a 5.5 pound, 14.4-inch machine [with a 15.6-inch display] that sports an understated design for a gaming notebook but with an interesting glittery finish that resists fingerprints well. With a retail price of $1199 (starting at $879), the model tested at HotHardware is powered by an AMD Ryzen 4800H 8-core processor that boosts to 4.2GHz and an AMD Radeon RX 5600M mobile GPU with 6GB of GDDR6 memory...

In the benchmarks, AMD's SmartShift technology load-balances CPU and GPU power supply for optimal performance and very respectable numbers that are competitive with any similar Intel/NVIDIA powered machine. The Dell G5 15 SE put up north of 60 FPS frame rates at maximum image quality in current-gen game titles, but with a significantly better price point, relatively speaking.
The GPU also has 2,304 stream processors across 36 compute units, and "Overall, we think Dell hit it out of the park with the new G5 15 SE," the review concludes.

"This all-AMD budget blockbuster has all of the gaming essentials: a fast processor, a powerful GPU, and a 144 Hz display."

An anonymous reader quotes a report from ZDNet: Some 66 million years ago, an asteroid hit the Earth on the eastern coast of modern Mexico, resulting in up to three quarters of plant and animal species living on the planet going extinct -- including the dinosaurs. Now, a team of researchers equipped with a supercomputer have managed to simulate the entire event, shedding light on the reasons that the impact led to a mass extinction of life. The simulations were carried out by scientists at Imperial College in London, using high performance computing (HPC) facilities provided by Hewlett Packard Enterprise. The research focused on establishing as precise an impact angle and trajectory as possible, which in turn can help determine precisely how the asteroid's hit affected the surrounding environment.

Various impact angles and speeds were considered, and 3D simulations for each were fed into the supercomputer. These simulations were then compared with the geophysical features that have been observed in the 110-mile wide Chicxulub crater, located in Mexico's Yucatan Peninsula, where the impact happened. The simulations that turned out to be the most consistent with the structure of the Chicxulub crater showed an impact angle of about 60 degrees. Such a strike had the strength of about ten billion Hiroshima bombs, and this particular angle meant that rocks and sediments were ejected almost symmetrically. This, in turn, caused a greater amount of climate-changing gases to be released, including billions of tonnes of sulphur that blocked the sun. The rest is history: firestorms, hurricanes, tsunamis and earthquakes rocked the planet, and most species disappeared from the surface of the Earth. The 60-degree angle constituted "the worse-case scenario for the lethality of the impact" because it maximized the ejection of rock and therefore, the production of gases, the scientists wrote.

"The researchers carried out almost 300 3D simulations before they were able to reach their conclusions, which was processed by the HPE Apollo 6000 Gen10 supercomputer located at the University of Leicester," adds ZDNet. "The 14,000-cores system, powered by Intel's Skylake chips, is supported by a 6TB server to accommodate large, in-memory calculations."

Linus Torvalds released Linux 5.7 rc7 today, saying it "looks very normal... none of the fixes look like there's anything particularly scary going on."

But then he added something else: [T]he biggest excitement this week for me was just that I upgraded my main machine, and for the first time in about 15 years, my desktop isn't Intel-based. No, I didn't switch to ARM yet, but I'm now rocking an AMD Threadripper 3970x. My 'allmodconfig' test builds are now three times faster than they used to be, which doesn't matter so much right now during the calming down period, but I will most definitely notice the upgrade during the next merge window.
The Register writes: Torvalds didn't divulge any further details about his new rig, but the 3970x is quite the beast, boasting 32 cores and 64 threads at 3.7GHz with the ability to burst up to 4.5GHz, all built on TSMC's 7nm FinFET process... Torvalds has probably acquired a whole new PC, as the Threadripper range requires a sTRX4 socket and those debuted on motherboards from late 2019.

Whatever he's running, it has more cores than Intel currently offers in a CPU designed for PCs. Even Chipzilla's high-end CoreX range tops out at 18 cores. AMD will be over the moon that such a high profile IT pro has adopted their kit and pointed to its performance.
Or, as long-time Slashdot reader williamyf puts it, "Good endorsement for AMD, a PR blow for Intel."

MojoKid writes: A couple of weeks back, Intel announced its 10th Gen Core desktop processors but today the embargo has been lifted on performance data. Intel's new 10th Gen Core series desktop chips are still based on the same architecture and leverage the same 14nm++ manufacturing process as their 9th Gen predecessors, but the company made numerous changes with Comet Lake-S in an attempt to deliver even more performance, efficiency, and value. A review of the new chips at HotHardware details features and performance of a couple of the stand-outs in Intel's initial 10th Gen Core series line-up -- the flagship Core i9-10900K and mid-range Core i5-10600K.

The Core i9-10900K features a monolithic, 10-core (20-thread) die that boosts to 5.3GHz, while the Core i5-10600K offers 6 cores / 12-threads at a 4.8GHz boost clock. Although the architecture is the same as the previous-gen, Intel has tuned its 10th Gen's frequency and voltage curves to boost performance and optimize power. The Core i9-10900K ends up being a significant upgrade over its predecessor, but more-so for multi-threaded tasks. The Core i5-10600K, however, is a decent upgrade over the previous-gen Core i5-9600K, in terms of both single- and multi-threaded performance. Both CPUs deliver competitive performance versus similarly-priced Ryzen 3000 series chips from AMD, though Intel retains an edge in gaming, while AMD delivers better overall multithreaded performance.

New submitter xhonza writes: New OpenBSD version. String of good news. Some of the new changes, as highlighted by Phoronix, include:
- FFS2 file-system improvements including using 64-bit timestamps and block numbers by default for new installs.
- Support for the Raspberry Pi 4 on ARM64 while improving the Raspberry Pi 3 support too. Raspberry Pi 2/3 support has also improved for OpenBSD ARMv7.
- Better support for Rockchip systems like the Pinebook Pro.
- Various SMP improvements including better AMD SMT/Core/Package detection.
- A wide variety of different hardware driver improvements, including Intel AX200 WiFi device support.
- A FIDO driver introduced for FIDO/U2F security keys support.
- Fixed handling of USB 2.0 devices when in use on different USB 3.0 controllers.
- The PowerPC OpenBSD build switched over to Clang as its default code compiler.
- Various dhclient fixes.
- Various security improvements.

The changelog, announcement, and list of mirrors can be found at their respective links.

The Senate has voted to reauthorize the USA Freedom Act without adding an amendment that would have restricted warrantless collection of internet search and web browsing data. It did however adopt an amendment to expand oversight. The Verge reports: The USA Freedom Reauthorization Act restores government powers that expired in March with Section 215 of the Patriot Act. The [Act] lets law enforcement collect "tangible things" related to national security investigations without a warrant, requiring only approval from a secret court that has reportedly rubber-stamped many requests. It passed the House of Representatives earlier this year, but it stalled in the Senate during the start of the coronavirus pandemic. Today, senators approved it with 80 votes for and 16 votes against, according to The Hill. The House of Representatives will need to approve the amended version of the bill before sending it to the president's desk.

The USA Freedom Act was designed to reform the Patriot Act and limit large-scale phone record collection, following leaks from NSA contractor Edward Snowden in 2013. But surveillance critics wanted to extend its limits in the reauthorized version. Sens. Mike Lee (R-UT) and Patrick Leahy (D-VT) successfully passed an amendment that would expand the role of independent advisers to the Foreign Intelligence Surveillance Act (FISA) court. Conversely, Sens. Ron Wyden (D-OR) and Steve Daines (R-MT) failed by one vote to pass a rule prohibiting warrantless surveillance of internet search and browsing records. Wyden ultimately voted against the reauthorization.

Alienware has announced the second generation of its flagship Area-51m gaming laptop, the Area-51m R2. It's largely similar on the outside to the original Area-51m, but the specs are almost completely overhauled on the inside, with 10th Gen Intel processors, new Nvidia GPUs, faster RAM, and better display options. From a report: All of those upgrades will be limited to the new R2 model, though. Despite Alienware's goals for future-proofed upgradable parts, the Area-51m has failed to live up to its potential. One of the biggest draws of the Area-51m was the option for user-replaceable parts. Most modern laptops have nearly all of their internal components sealed in place in an effort to cut down on size. But the Area-51m took a different approach. It was big, easy to disassemble, and made it simple to replace nearly every internal component, from RAM to the CPU to the GPU to even the thermal cooling components. The idea was to make something more portable than any other desktop but more customizable than any laptop. Alienware's parent company, Dell, even built its own system for replaceable GPUs in laptops, called DGFF (Dell Graphics Form Factor) to make it easier to upgrade in the future.

The Trump administration and semiconductor companies are looking to jump-start development of new chip factories in the U.S. as concern grows about reliance on Asia as a source of critical technology. From a report: A new crop of cutting-edge chip factories in the U.S. would reshape the industry and mark a U-turn after decades of expansion into Asia by many American companies eager to reap investment incentives and take part in a robust regional supply chain. The coronavirus pandemic has underscored longstanding concern by U.S. officials and executives about protecting global supply chains from disruption. Administration officials say they are particularly concerned about reliance on Taiwan, the self-governing island China claims as its own, and the home of Taiwan Semiconductor Manufacturing Co., the world's largest contract chip manufacturer and one of only three companies capable of making the fastest, most-cutting-edge chips.

Trump administration officials are in talks with Intel Corp., the largest American chip maker, and with TSMC, to build factories in the U.S., according to correspondence viewed by The Wall Street Journal and people familiar with the discussions. "We're very serious about this," said Greg Slater, Intel's vice president of policy and technical affairs. Mr. Slater said Intel's plan would be to operate a plant that could provide advanced chips securely for both the government and other customers.

A new set of flaws discovered in the Intel Thunderbolt port has put millions of machines at risk of local hacking. This new research by Eindhoven University's Bjorn Ruytenberg suggests that if a hacker gains access to a machine for just five minutes, they could bypass login methods to gain full data access. From a report: Thunderbolt ports are present in machines with Windows, Linux, and macOS. So, that covers a lot of computers. Ruytenberg said all Thunderbolt versions and systems shipped between 2011 to 2020 are affected and no software patch can fix these vulnerabilities. So, Intel would need to redesign silicon in order to fix these flaws. There's not much you can do here. However, with open-source software called Thunderspy, developed by Ruytenberg and their team, you can check if you're affected by the Thunderbolt bug.

Microsoft and Intel have collaborated on a new research project that explores a new approach to detecting and classifying malware. From a report: Called STAMINA (STAtic Malware-as-Image Network Analysis), the project relies on a new technique that converts malware samples into grayscale images and then scans the image for textural and structural patterns specific to malware samples. The Intel-Microsoft research team said the entire process followed a few simple steps. The first consisted of taking an input file and converting its binary form into a stream of raw pixel data. Researchers then took this one-dimensional (1D) pixel stream and converted it into a 2D photo so that normal image analysis algorithms can analyze it.

Reuters reports that the Trump administration "is in talks with semiconductor companies about building chip factories in the United States, representatives from two chipmakers said on Sunday." Intel Corp is in discussions with the United States Department of Defense over improving domestic sources for microelectronics and related technology, Intel spokesman William Moss said in an emailed statement. "Intel is well positioned to work with the U.S. government to operate a U.S.-owned commercial foundry and supply a broad range of secure microelectronics", the statement added.

Taiwan Semiconductor Manufacturing Co, on the other hand, has been in talks with the U.S. Department of Commerce about building a U.S. factory but said it has not made a final decision yet. "We are actively evaluating all the suitable locations, including in the U.S., but there is no concrete plan yet", TSMC spokeswoman Nina Kao said in a statement...

The Wall Street Journal had also reported that U.S. officials are looking at helping South Korea's Samsung Electronics, which has a chip factory in Austin, Texas, to expand its contract-manufacturing operations in the United States.

Intel compromised worker safety at some of its factories to maintain chip production in the midst of the Covid-19 pandemic, according to complaints filed with government agencies and employees at one of the sites. From a report: At a plant in Chandler, Arizona, the world's largest semiconductor maker did not isolate staff that worked closely with teammates who had tested positive and did not institute tests, people who work there said. Factory managers also dismissed concerns that social-distancing guidelines were not being followed properly, according to the people, who asked not to be identified because they fear sanction by their employer. Many of these virus-related concerns were also raised in filings to state agencies that regulate workplace safety. The company said it responded with new policies to improve employee safety and kept factory output high because its products are essential.

MojoKid writes: AMD unveiled two new Ryzen 3 processors recently, designed to drive its Zen 2 CPU microarchitecture into more affordable price points. The new Ryzen 3 3100 and Ryzen 3 3300X are entry-level 3rd gen Ryzen CPUs that will run in any socket AM4 motherboard, with price points of only $99 (Ryzen 3 3100) and $120 (Ryzen 3 3300X). They are both quad-core/eight-thread chips, with similar cache configurations (2MB L2 + 16MB L3), and they both include basic Wraith Stealth coolers in their retail boxes. Internally, however, these two processors are somewhat different. The Ryzen 3 3100 is setup in a 2+2 configuration with two cores active per CCX (CPU Core Complex). The Ryzen 3 3300X, however, has a 4+0 configuration, with all of its active cores residing on a single CCX. These differences should result in better overall performance for the Ryzen 3 3300X, over and above just having a higher peek clock speed of 4.3GHz, versus 3.90Ghz for the Ryzen 3 3100. In the benchmarks, these new AMD quad-core chips offer similar or better performance versus competitive Intel Core i5 chips, but at significantly lower price points.

Ammalgam shares a report from Redmond Pie: Microsoft has officially announced the Surface Book 3. Not much has changed for the device in terms of external design, but internal circuitry is where it's at. This newest addition to the Surface family was formally unveiled alongside the Surface Go 2 today. And the detachable PC finally got the long overdue refresh. Microsoft decided to go with the latest Intel 10th generation CPUs, codenamed Ice Lake. There was talk that the company might opt for the Comet Lake processors. Both are 10th generation chips, but Ice Lake is made on a 10nm process, while Comet Lake is 14nm. [...] As for the CPU options, we have the Core i5-1035G7 and Core i7-1065G7 available. The Core i5 models don't offer dedicated graphics, while the 15-inch variant of the Surface Book 3 only comes in the Core i7 flavor. GPU got a real look, too. The 13.5-inch Surface Book 3 gets you the 4GB Max-Q variant of the NVIDIA GeForce GTX 1650, while the 15-inch one comes with a GTX 1660 Ti Max-Q with 6GB.

On the display side, we have a 3000 x 2000 screen on the 13.5-inch model, while the 15-inch one offers a resolution of 3240 x 2160. Microsoft also claims that the Surface Book 3 has the best battery life of any device it has made up until now. It's rated at 17.5 hours on the 15-inch model and 15.5 hours on the 13.5-inch variant. Some neat improvements when it comes to port selection, with both the USB Type-A and Type-C ports now being USB 3.1 Gen 2, meaning you get 10Gbps instead of 5Gbps. There is also a Surface Connect port on both the base and the tablet, to go with the 3.5mm audio jack in the tablet. All these enhancements mean that the starting price of the Surface Book 3 is a bit higher at $1,599. It will be available on May 21.