Graphics

AMD's Vega Graphics Are Coming To Gaming Laptops (tomshardware.com) 62

Paul Alcorn reporting for Tom's Hardware: AMD listed the Ryzen 7 2800H and the Ryzen 5 2600H on its website. These new processors bring the inherent goodness of the Raven Ridge architecture, found in the Ryzen 5 2400G and the Ryzen 3 2200G, to gaming notebooks. As such, these processors come with AMD's Zen compute cores paired with the Vega graphics architecture, and they are also AMD's first processors to support DDR4-3200 as a base specification. Both new models feature a similar design as their desktop counterparts, albeit with slightly redesigned in frequencies to adjust for the flimsy cooling in mobile form factors and battery life limitations. That's reflected in the processors' reduced 45W TDP (thermal design power), which is much lower than the 65W TDP found on the desktop parts. AMD does give vendors some wiggle room with a configurable TDP (cTDP) range that spans between 35W and 45W.

The Ryzen 7 2800H is analogous to the 2400G, but it comes with a 3.3 GHz base and 3.8 GHz boost clocks. The four-core, eight-thread CPU is complemented by Vega graphics with 11 CU (Compute Unit) clocked up to a max of 1,300 MHz, which is a nice boost over its desktop counterpart. The Ryzen 5 2600H is similar to the 2200G, but it's four cores are hyper-threaded, which is a big bonus. The Vega graphics come with 8 CUs and boost up to 1,100 MHz.

AMD

AMD Debuts Ryzen 5 2500X and Ryzen 3 2300X For Prebuilt PCs (techreport.com) 53

AMD announced two new second-generation Ryzen CPUs this morning. From a report: The Ryzen 5 2500X and Ryzen 3 2300X bring Precision Boost 2 and XFR 2 to quad-core Ryzens without integrated graphics, but there's a catch: these chips appear to be available exclusively to system integrators and OEMs for use in prebuilt systems. AMD is debuting the Ryzen 5 2500X in cooperation with Acer in the form of the Nitro 50 desktop PC. AMD says the Ryzen 5 2500X and Ryzen 3 2300X each use a single enabled core complex (or CCX) from the two available on Pinnacle Ridge Zeppelin dies to get their four cores. Recall that the Ryzen 5 1500X instead used two cores from each CCX to get its core count. A consequence of this architectural change versus the Ryzen 5 1500X is that the Ryzen 5 2500X now has 8 MB of L3 cache, down from 16 MB. That puts both the Ryzen 5 2500X and Ryzen 3 2300X on par with the Ryzen 3 1300X and Ryzen 3 1200 on a cache-capacity basis.
Bug

Intel Blocked Collaboration On Spectre/Meltdown Fixes, Says Linux Kernel Developer (eweek.com) 83

This week in Vancouver, Linux kernel developer Greg Kroah-Hartman criticized Intel's slow initial response to the Spectre and Meltdown bugs in a talk at the Open Source Summit North America. An anonymous reader quotes eWeek: Kroah-Hartman said that when Intel finally decided to tell Linux developers, the disclosure was siloed.... "Intel siloed SUSE, they siloed Red Hat, they siloed Canonical. They never told Oracle, and they wouldn't let us talk to each other." For an initial set of vulnerabilities, Kroah-Hartman said the different Linux vendors typically work together. However, in this case they ended up working on their own, and each came up with different solutions. "It really wasn't working, and a number of us kernel developers yelled at [Intel] and pleaded, and we finally got them to allow us to talk to each other the last week of December [2017]," he said. "All of our Christmas vacations were ruined. This was not good. Intel really messed up on this," Kroah-Hartman said...

"The majority of the world runs Debian or they run their own kernel," Kroah-Hartman said. "Debian was not allowed to be part of the disclosure, so the majority of the world was caught with their pants down, and that's not good." To Intel's credit, Kroah-Hartman said that after Linux kernel developers complained loudly to the company in December 2017 and into January 2018, it fixed its disclosure process for future Meltdown- and Spectre-related vulnerabilities... "Intel has gotten better at this," he said.

An interesting side effect of the Meltdown and Spectre vulnerabilities is that Linux and Windows developers are now working together, since both operating systems face similar risks from the CPU vulnerabilities. "Windows and Linux kernel developers now have this wonderful back channel. We're talking to each other and we're fixing bugs for each other," Kroah-Hartman said. "We are working well together. We have always wanted that."

Bug

How Do Spectre/Meltdown Fixes Affect The Linux Kernel? (phoronix.com) 29

"Using the newly minted Linux 4.19 feature code, fresh benchmarks were carried out looking at the performance cost of Spectre/Meltdown/Foreshadow mitigations on Intel Xeon v. AMD EPYC CPUs," writes an anonymous Slashdot reader: Workloads affected by these CPU vulnerabilities mainly deal with I/O and frequent kernel calls while CPU bound tests are still found to be minimally impacted. When toggling these mitigations on Linux 4.19, Intel Xeon CPUs were found to be 10~15% slower with the default kernel while AMD EPYC CPUs dropped to about 5% slower.
AMD

GlobalFoundries Stops All 7nm Development: Opts To Focus on Specialized Processes (anandtech.com) 114

GlobalFoundries has made a major strategy shift announcement. The contract maker of semiconductors says it is ceasing development of bleeding edge manufacturing technologies and stop all work on its 7LP (7 nm) fabrication processes, which will not be used for any client. From a report: Instead, the company will focus on specialized process technologies for clients in emerging high-growth markets. These technologies will initially be based on the company's 14LPP/12LP platform and will include RF, embedded memory, and low power features. Because of the strategy shift, GF will cut 5% of its staff as well as renegotiate its WSA and IP-related deals with AMD and IBM.

GlobalFoundries was on track to tape out its clients' first chips made using its 7 nm process technology in the fourth quarter of this year, but "a few weeks ago" the company decided to take a drastic strategical turn, says Gary Patton. The CTO stressed that the decision was made not based on technical issues that the company faced, but on a careful consideration of business opportunities the company had with its 7LP platform as well as financial concerns.
On the heels of this announcement, AMD said today that it will move all of its 7nm production on both CPUs and GPUs to TSMC.
Debian

Intel Publishes Microcode Security Patches With No Benchmarks Or Profiling Allowed (theregister.co.uk) 373

Long-time Slashdot reader Bruce Perens writes: The Register reports that Debian is rejecting a new Intel microcode update because of a new license term prohibiting the use of the CPU for benchmarks and profiling.

There is a new license term applied to the new microcode: "You will not, and will not allow any third party to (i) use, copy, distribute, sell or offer to sell the Software or associated documentation; (ii) modify, adapt, enhance, disassemble, decompile, reverse engineer, change or create derivative works from the Software except and only to the extent as specifically required by mandatory applicable laws or any applicable third party license terms accompanying the Software; (iii) use or make the Software available for the use or benefit of third parties; or (iv) use the Software on Your products other than those that include the Intel hardware product(s), platform(s), or software identified in the Software; or (v) publish or provide any Software benchmark or comparison test results."
UPDATE:: Intel has reworked the license to no longer prohibit benchmarking. Imad Sousou, corporate VP and general manager of Intel Open Source Technology Center, tweeted on Thursday: "We have simplified the Intel license to make it easier to distribute CPU microcode updates and posted the new version here. As an active member of the open source community, we continue to welcome all feedback and thank the community."
Graphics

NVIDIA Unveils Next-Gen Turing Quadro RTX Professional Graphics Cards (hothardware.com) 56

MojoKid shares a report from Hot Hardware: We been hearing a lot about NVIDA's next-generation GPU architecture since late last year, and today NVIDIA is announcing the first products based on Turing. NVIDIA is targeting the professional graphics market first with its new Quadro RTX 8000, RTX 6000 and RTX 5000 GPUs. Turing GPU architecture replaces Pascal, which has served both the consumer and professional markets since 2016. But as its 8th generation GPU architecture, NVIDIA is ushering in a number of advances with Turing and it's billed as the "world's first ray-tracing GPU." When it comes to content creators, NVIDIA claims that with the power of Turing, "applications can simulate the physical world at 6x the speed of the previous Pascal generation."

Getting down to brass tacks, the entry-level Quadro RTX 5000 has 3,072 CUDA cores, 384 Tensor cores, and will come with 16GB of 14Gbps GDDR6 memory. Its ray-tracing performance is dialed in at 6 GigaRays/sec, according to NVIDIA. Both the Quadro RTX 6000 and RTX 8000 have 4,608 CUDA cores and 576 Tensor cores; the only difference between the two is that the former has 24GB of GDDR6, while the latter doubles that to 48GB. Ray-tracing performance for both of these GPUs tops out at 10 GigaRays/sec. NVIDIA is also claiming up to 16TFLOPs compute performance for the Quadro RTX 8000. NVIDIA's new Quadro GPUs will also be among the first to support both USB-C and VirtualLink for next-generation virtual reality and mixed reality headsets. Other VirtualLink backers include AMD, Oculus, Microsoft and Valve. The Quadro RTX 5000, RTX 6000 and RTX 8000 will all be available during the fourth quarter of 2018 priced at $2,300, $6,300 and $10,000 respectively.

Operating Systems

Linux 4.18 Releases With Steam Controller Kernel Driver, Spectre Updates (phoronix.com) 47

fstack writes: Linus Torvalds has released Linux 4.18 as the newest kernel bringing a Steam Controller kernel driver, Spectre updates for ARM64, power management updates, a "Restartable Services" system call, AMD Radeon graphics driver improvements, V3D DRM as Broadcom's new graphics driver, DM writecache support, USB 3.2 support, and many other updates. Linus Torvalds wrote of the 4.18 final release: "It was a very calm week, and arguably I could just have released on schedule last week, but we did have some minor updates. Mostly networking, but some vfs race fixes (mentioned in the rc8 announcement as 'pending') and a couple of driver fixes (scsi, networking, i2c). Some other minor random things (arm crypto fix, parisc memory ordering fix)." In a separate article, Phoronix details all the changes and new features available in this release.
Bug

Researchers Disclose New 'Inverse Spectre Attack' (digitaljournal.com) 96

A new Intel security flaw has been discovered that potentially allows passwords to be stolen. An anonymous reader quotes Digital Journal: As EE News reports, researchers said the new flaw enables an "inverse spectre attack". According to Giorgi Maisuradze and Professor Dr. Christian Rossow a ret2spec (return-to-speculation) vulnerability with the chips allows for would-be attackers to read data without authorization. According to Professor Rossow: "The security gap is caused by CPUs predicting a so-called return address for runtime optimization."

The implications of this are: "If an attacker can manipulate this prediction, he gains control over speculatively executed program code. It can read out data via side channels that should actually be protected from access." This means, in essence, that malicious web pages could interpret the memory of the web browser in order to access and copy critical data. Such data would include stored passwords.

"At least all Intel processors of the past ten years are affected by the vulnerabilities," reports EE News, adding "Similar attack mechanisms could probably also be derived for ARM and AMD processors...."

"Manufacturers were notified of the weaknesses in May 2018 and were granted 90 days to remedy them before the results were published. That deadline has now expired."
Security

World's Largest Chip Maker Will Lose $250M For Not Patching Windows 7 Computers (networkworld.com) 108

A major virus infection forced the closure of Taiwan Semiconductor Manufacturing Company (TSMC) factories last weekend..." writes Slashdot reader Mark Wilson, noting that it's the largest semiconductor manufacturer in the world, selling chips to Apple, Nvidia, AMD, Qualcomm, and Broadcom, and "responsible for producing iPhone processors."

Now Network World reports: The infection struck on Friday, August 3, and affected a number of unpatched Windows 7 computer systems and fab tools over two days. TSMC said it was all back to normal by Monday, August 6. TSMC did not say it was WannaCry, aka WannaCrypt, in its updates, but reportedly blamed WannaCry in follow-up conference calls with the press.... The company said this incident would cause shipment delays and additional costs estimated at 3 percent of third quarter revenue. The company had previously forecast revenues of $8.45 billion to $8.55 billion for its September quarter. A 3 percent loss would mean $250 million, though actual losses may come out lower than that. Still, that's a painful hit. TSMC also said no customer data was compromised....

TSMC isn't directly to blame here; someone [an infected production tool provided by an unidentified vendor] brought WannaCry into their offices and behind their firewall, but TSMC is still culpable because it left systems unpatched more than a year after WannaCry hit.

AMD

AMD Creates Quad Core Zen SoC with 24 Vega CUs for Chinese Consoles (anandtech.com) 93

An anonymous reader shares a report: AMD has cornered the x86 console market with its handy semi-custom mix of processors and graphics. While we slowly await the next generation of consoles from Microsoft and Sony, today AMD and Zhongshan Subor announced that a custom chip has been made for a new gaming PC and an upcoming console for the Chinese market.

The announcement states that a custom chip has been created for Subor that is based on four Zen cores running at 3.0 GHz and 24 compute units of Vega running at 1.3 GHz. The chip is supported by 8GB of GDDR5 memory, which the press release states is also embedded onto the chip, however it is likely to actually be on the package instead. [...] Assuming that this custom chip is a single chip design, with CPU and GPU, this means that AMD is handily gaining custom contracts and designing custom chip designs for its customers, even for consoles that won't have the mass western appeal such as the Xbox or Playstation.

Security

Researchers Detail New CPU Side-Channel Attack Named SpectreRSB (bleepingcomputer.com) 39

An anonymous reader writes: "Scientists from the University of California, Riverside (UCR) have published details last week about a new Spectre-class attack that they call SpectreRSB," reports Bleeping Computer. "Just like all 'Spectre-class' attacks, SpectreRSB takes advantage of the process of speculative execution -- a feature found in all modern CPUs that has the role of improving performance by computing operations in advance and later discarding unneeded data. The difference from previous Spectre-like attacks is that SpectreRSB recovers data from the speculative execution process by attacking a different CPU component involved in this 'speculation' routine, namely the Return Stack Buffer (RSB)." In a research paper, academics say they've used SpectreRSB attacks to recover data belonging to other processes, and have even tricked the RSB into spilling SGX secrets. The attack works on Intel, AMD, and ARM processors, known to use RSB. The attack can also bypass all the mitigations put in place for the original Spectre/Meltdown flaws.
Open Source

Interviews: Christine Peterson Answers Your Questions 79

You asked questions, we've got the answers!

Christine Peterson is a long-time futurist who co-founded the nanotech advocacy group the Foresight Institute in 1986. One of her favorite tasks has been contacting the winners of the institute's annual Feynman Prize in Nanotechnology, but she also coined the term "Open Source software" for that famous promotion strategy meeting in 1998.

Christine took some time to answer questions from Slashdot readers.
Graphics

Apple Partnered With Blackmagic On An External GPU For MacBooks (techcrunch.com) 102

Apple has worked with cinema company Blackmagic on an external GPU based around an AMD Radeon Pro 580 graphics card with 8GB of DDR5 RAM. The Blackmagic eGPU features "an HDMI port, four USB 3.1s and three Thunderbolt 3s, the latter of which makes it unique among these peripherals," reports TechCrunch. From the report: The company says the on-board cooling system operates pretty quietly, which should fit nicely alongside those new, quieter MacBook keyboards. Many developers will no doubt prefer to configure their own, but for those who want an easier solution for playing resource-intensive games or graphics rendering on with a MacBook, this is a fairly simple solution. The [$699] eGPU is available now through Apple's retail channels.
Portables (Apple)

Apple Refreshes MacBook Pro Lineup (arstechnica.com) 217

Apple said on Thursday it is refreshing the 13-inch and 15-inch MacBook Pro models. Neither machines are getting major redesigns, but the innards are getting a spec update. For starters, both the models are powered by the 8th-generation Intel processors and house more cores than before -- a maximum of six cores on the 15-inch model (compared to four in last year's models) and four in the 13-inch model (compared to two). That means faster performance for many use cases. Maximum SSD capacity is also doubled, and the MacBook Pro line offers DDR4 RAM for the first time. ArsTechnica: The laptops also borrow some features from the iMac Pro and the iPad Pro -- the T2 chip and True Tone, respectively -- and feature a revised butterfly keyboard, the third generation of the design Apple introduced in 2016 (the revision is a little more significant this time around). Apart from those tweaks to the keyboard, the basic design of the MacBook Pro is unchanged. The top configuration of the 15-inch model includes an 8th-generation, six-core Intel Core i9 CPU clocked at 2.9GHz. Six-core Intel Core i7 processors are also options. The 2017 iteration of the MacBook Pro featured DDR3 memory with a maximum configuration of 16GB. This time, it's DDR4, and the maximum is 32. The faster memory uses more energy, so a bigger battery is now included -- but Apple's battery life estimate remains the same as last year's. The GPU in the top standard configuration is listed as an AMD Radeon Pro 555X.

The 13-inch model has different specs, of course. It still only offers integrated Intel graphics, for one thing -- Intel Iris Plus 655, this time with 128MB of eDRAM. But the maximum number of cores are again doubled -- in this case to four -- in 8th-generation Intel Core i5 or Core i7 CPUs, which run at up to 2.7GHz. Maximum SSD capacity is also doubled; it's now 2TB. The maximum memory is still 16GB. Apple claims the 13-inch model is up to twice as fast as its predecessor, though it will of course depend on the application.
ArsTechnica says the keyboard on the new MacBook Pro models, though look similar to the one in the predecessor lineup, feel a little different to type on. The price of 13-inch starts at $1,799 while the 15-inch starts at $2,399.
Media

AV1 is Well On Its Way To Becoming a Viable Alternative To Patented Video Codecs, Mozilla Says (mozilla.org) 66

Here's a surprising fact: It costs money to watch video online, even on free sites like YouTube. That's because about 4 in 5 videos on the web today rely on a patented technology called the H.264 video codec. From a report: It took years for companies to put this complex, global set of legal and business agreements in place, so H.264 web video works everywhere. Now, as the industry shifts to using more efficient video codecs, those businesses are picking and choosing which next-generation technologies they will support. The fragmentation in the market is raising concerns about whether our favorite web past-time, watching videos, will continue to be accessible and affordable to all.

Over the last decade, several companies started building viable alternatives to patented video codecs. Mozilla worked on the Daala Project, Google released VP9, and Cisco created Thor for low-complexity videoconferencing. All these efforts had the same goal: to create a next-generation video compression technology that would make sharing high-quality video over the internet faster, more reliable, and less expensive. In 2015, Mozilla, Google, Cisco, and others joined with Amazon and Netflix and hardware vendors AMD, ARM, Intel, and NVIDIA to form AOMedia. As AOMedia grew, efforts to create an open video format coalesced around a new codec: AV1. AV1 is based largely on Google's VP9 code and incorporates tools and technologies from Daala, Thor, and VP10.

Mozilla loves AV1 for two reasons: AV1 is royalty-free, so anyone can use it free of charge. Software companies can use it to build video streaming into their applications. Web developers can build their own video players for their sites. The second reason we love AV1 is that it delivers better compression technology than even high-efficiency codecs -- about 30% better, according to a Moscow State University study.

AMD

China Begins Production Of x86 Processors Based On AMD's IP (tomshardware.com) 189

Chinese-designed "Dhyana" x86 processors based on AMD's Zen microarchitecture are beginning to surface from Chinese chip producer Hygon. From a report: The processors come as the fruit of AMD's x86 IP licensing agreements with its China-based partners and break the decades-long stranglehold on x86 held by the triumvirate of Intel, AMD and VIA Technologies. Details are also emerging that outline how AMD has managed to stay within the boundaries of the x86 licensing agreements but still allow Chinese-controlled interests to design and sell processors based on the Zen design.

AMD's official statements indicate the company does not sell its final chip designs to its China-based partners. Instead, AMD allows them to design their own processors tailored for the Chinese server market. But the China-produced Hygon "Dhyana" processors are so similar to AMD's EPYC processors that Linux kernel developers have listed vendor IDs and family series numbers as the only difference. In fact, Linux maintainers have simply ported over the EPYC support codes to the Dhyana processor and note that they have successfully run the same patches on AMD's EPYC processors, implying there is little to no differentiation between the chips.

Graphics

As Cryptocurrency Values Plummet, Graphics Card Pricing Improves Dramatically (hothardware.com) 242

MojoKid writes: In recent months, the cryptocurrency industry has taken a sharp downturn in valuations of virtually all major currencies, from Bitcoin to Ethereum. As a result, cryptocurrency mining itself has become significantly less lucrative for the average miner. In addition, demand on GPUs from the major OEM suppliers like NVIDIA and AMD, has fallen off dramatically as well. Cryptocurrency miner demand for graphics cards has fallen so much so, that pricing of board partner brands like EVGA, Asus, MSI, Gigabyte and others, has returned basically to MSRP levels. This is compared to the sharp price gouging that was going on earlier in 2018 and late last year, when demand was far out-stripping supply. In fact, reports are emerging now that another approximate 20 percent price drop could be coming to GPUs this month, especially as NVIDIA is expected to launch its next generation gaming graphics card very soon. Whether or not this is indicative of some sort of cryptocurrency bubble burst remains to be seen. However, for now, gamers and PC enthusiasts are likely breathing a sigh of relief, as better supply/demand dynamics are clearly in sight.
Intel

Laptop Vendors Are Left Sitting On the Sidelines Waiting For the Next Waltz To Start (pcper.com) 87

An anonymous reader shares a report: Intel's delayed release of a new processor is going to have a noticeable effect on the laptop market this year. As there is little chance of seeing anything new until towards the end of this year, laptop designers will not be able to offer new models for the holidays and will instead have to rework existing products. DigiTimes suggests we will see trimmed down models with lower price tags to try to entice consumers into purchasing something, as they expect lower demand than we saw last year. Hopefully some gaming machines may become more affordable, or we will start to see models incorporating AMD's new chips become more common.
Communications

Nvidia Looks To Gag Journalists With Multi-Year Blanket NDAs (hardocp.com) 126

The German website Heise reports that Nvidia's new non-disclosure agreements (NDAs) last for five years and are more far reaching than product-specific information. HardOCP explains what NDAs are and shares an excerpt from Heise's report: First and foremost, I should tell you that NDAs in the tech world are nothing new, but those non-disclosure agreements usually are product-specific and date-specific. Say we agree to get a review sample of video card X. Many times we will get an NDA that is specific to releasing any information shared by card X's representative and a date when we can share that information with you, often referred to as the "embargo date."

[Here's the excerpt from Heise about Nvidia's new NDA]: "The NDA should apply to all information provided by Nvidia, so it did not refer to a specific product or information. There was also no concrete expiration date. It was also full of conditions that ran counter to journalistic principles. Our legal department clapped their hands over their heads as they read the document. In other words, journalists are allowed to write only what fits Nvidia in the junk. In doing so, Nvidia downgrades the independent press into a marketing tool."
There are several forums discussing Nvidia's new NDA. HardOCP has shared a copy of the NDA for you to read and make up your own mind.

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