MojoKid writes: Remember that Radeon R9 Fury X2 graphics card that AMD CEO Lisa Su showed off months ago? We were previously lead to believe that the dual-GPU graphics card would deliver performance of around 12 TFLOPs. However, the card will actually deliver in excess of 16 TFLOPs. AMD says that this is more than enough to allow developers to "Develop content more rapidly for tomorrow's killer VR experiences while at work, and playing the latest DirectX 12 experiences at maximum fidelity while off work." And the Radeon R9 Fury X2 name? That's dead and buried — the card is now known as the Radeon Pro Duo. Not much is known about the new card at this point but the Radeon Pro Duo will apparently be available during the second quarter with an estimated street price of $1,499.

prisoninmate writes: Yes, you're reading it right, after being in development for the past two months, Linux kernel 4.5 is finally here in its final production version. It is internally dubbed "Blurry Fish Butt" and received a total of seven RC builds since January 25, 2016. Prominent features of Linux kernel 4.5 include the implementation of initial support for the AMD PowerPlay power management technology, bringing high performance to the AMDGPU open-source driver for Radeon GPUs, scalability improvements in the free space handling of the Btrfs file system, and better epoll multithreaded scalability. The sources are now available for download from kernel.org. Update: 03/14 13:24 GMT by T : Reader diegocg lists some other notable features (a new copy_file_range() system call that allows to make copies of files without transferring data through userspace; support GCC's Undefined Behavior Sanitizer (-fsanitize=undefined); Forwarded Error Correction support in the device-mapper's verity target; support for the MADV_FREE flag in madvise(); the new cgroup unified hierarchy is considered stable; scalability improvements for SO_REUSEPORT UDP sockets; scalability improvements for epoll, and better memory accounting of sockets in the memory controller), and links to an explanation of the changes at Kernel Newbies.

AnandTech writes about AMD's XConnect technology: Last night AMD issued a driver update that brought support for a new technology, XConnect. In a nutshell, XConnect is AMD's trade name for running external video cards via Thunderbolt 3, a long-awaited development that Thunderbolt owner Intel is finally getting behind and allowing. [...] AMD is also laying out the technical requirements for supporting XConnect. Not just any laptop/desktop with Thunderbolt 3 can support an external GPU, as there are specific hardware and software requirements, which is why the Blade Stealth is the first qualified laptop. In particular, laptops need to support what is being called the Thunderbolt 3 external graphics standard, or eGFX for short.

Vigile writes: One of the concerns surrounding the recent debate of the Unified Windows Platform and games being released on it, such as the recent Gears of War Ultimate Edition, was the inability for media and consumers, and even entry level developers, to properly profile the performance of those applications. All of the standard testing applications like Fraps, FCAT and other overlays are locked out of UWP games. A Intel graphics engineer released a tool called PresentMon on GitHub yesterday that accesses event timers in Windows to monitor Present commands in any API, including DX11, DX12, Vulkan as well as games built on the Windows Store platform. Using this data, PC Perspective was able to profile the performance of the new Gears of War on PC, comparing frame time variability between the two flagship parts from NVIDIA and AMD. While it's not a perfect utility yet, there is hope now that this open source code will allow for performance metrics on any and all gaming titles.

An anonymous reader writes: Ubuntu 16.04 LTS and newer will no longer be supporting AMD's widely-used Catalyst Linux (fglrx) driver. AMD has dropped support for this proprietary AMD driver in favor of encouraging users to use the open-source AMDGPU/Radeon drivers. While the fglrx/Catalyst driver is notorious among Linux gamers, this will represent a regression for many AMD Linux users due to the open-source driver only having OpenGL 4.1 support compared to OpenGL 4.5 in Catalyst, lower performance in common gaming workloads, incomplete OpenCL compute support, no CrossFire multi-GPU support, and other missing features. Much of the missing functionality will end up being implemented by AMD's new AMDGPU driver stack but that is still months away from being truly ready and will only benefit the very latest Radeon GPUs while the fglrx-free Ubuntu 16.04 is set to ship in April.

An anonymous reader writes: It's been almost a year now since Oculus announced that the consumer version of the Rift virtual-reality headset would only support Windows PCs at launch -- a turnaround from development kits that worked fine on Mac and Linux boxes. Now, according to Oculus co-founder Palmer Luckey, it "is up to Apple" to change that state of affairs. Specifically, "if they ever release a good computer, we will do it," he told Shacknews recently. Basically, Luckey continued, even the highest-end Mac you can buy would not provide an enjoyable experience on the final Rift hardware, which is significantly more powerful than early development kits. "It just boils down to the fact that Apple doesn't prioritize high-end GPUs," he said. "You can buy a $6,000 Mac Pro with the top-of-the-line AMD FirePro D700, and it still doesn't match our recommended specs."

Soulskill writes: In a recent Facebook post, AMD's Robert Hallock hinted that the company is working on a standardized solution for external GPUs. When people are looking to buy laptops, they often want light, portable machines — but smaller devices often don't have the horsepower to effectively run games. Hallock says, "External GPUs are the answer. External GPUs with standardized connectors, cables, drivers, plug'n'play, OS support, etc." The article points out that the Thunderbolt 3 connector already (kinda) solves this problem, providing up to 40Gbps of bandwidth over a single connector. Still, I find external GPUs intriguing. I like the idea of having a light laptop when I'm moving around, but a capable one when I sit down at home to play a game. It'd also be nice to grab my desktop's GPU when I want to game on my laptop in the living room. Standardization may turn out to be important for GPU-makers if VR ends up taking off. The hardware requirements for those devices are fairly steep, and it'd facilitate adoption if graphics power was more easily expandable.

SteamOS just gained support for Vulkan, the cross-platform alternative to Microsoft's DirectX 12 and Apple's Metal. This should make it easier for developers to write and optimize games for SteamOS, closing the performance gap with Windows and encouraging more developers to support Linux. This feature arrived in SteamOS Brewmaster version 2.63. Valve added version 355 of the Linux Nvidia driver, which means SteamOS offers Vulkan support when used alongside Nvidia hardware. Intel's graphics hardware should also support Vulkan on SteamOS in the near future. AMD is still working on its new driver, known as AMDGPU, that will replace the current fglrx driver for SteamOS and other Linux-based platforms. If you use Linux distribution besides SteamOS, you can download Nvidia's Vulkan-ready Linux driver or an experimental version of Intel's Vulkan-enabled graphics driver.

Vigile writes: Valve took another step to prepare the world for VR gaming by releasing the SteamVR Performance Test today. This application that is free to download through Steam, runs a portion of the Aperture Science Robot Repair demo originally built for the HTC Vive VR headset, and reports back performance metrics and a grade for your PC's hardware. Scores include a Not Ready, Capable and Ready result as well as an "average fidelity" numeric score that is even more interesting. Valve integrated a dynamic fidelity feature "that adjusts image quality of the game in a way to avoid dropped frames and frame rates under 90 FPS" — a target for an acceptable VR experience. Early results put the GeForce GTX 980 Ti at the top of the GPU stack though AMD's Radeon products do very well at every price point below $600. Is your wallet ready?

Last week you asked questions of Ubuntu Unleashed author Matthew Helmke, about everything from system D to the future of Ubuntu and Canonical; he's responded, at length. Read on for Matthew's answers.

An anonymous reader writes: Vulkan 1.0 was released this morning as a surprise for those looking towards a high-performance, cross-platform (everyone but Apple) API. In a lengthy overview of Vulkan 1.0, the stage is set for making Vulkan what it's been talked up to be, but it's not there yet for end-users to fully enjoy: NVIDIA has conformant drivers out for major platforms, AMD doesn't have any conformant driver yet, and Intel only has a conformant Linux driver. The lone launch title for Vulkan 1.0 is Talos Principle, but don't expect it to perform better than the OpenGL port at this time. While it's easy for many game developers to port to Vulkan, it will require significant investment to make the engines really much faster than their OpenGL/DirectX11-geared code-bases while new games should be much better from the start when designed around this lower-level API. The spec will be available at Khronos.org and the Vulkan SDK is available from LunarG.com.

MojoKid writes: AMD is long overdue for a major architecture update, though one is coming later this year. Featuring the codename "Zen," AMD's already provided a few details, such as that it will be built using a 14nm FinFET process. In time, AMD will reveal all there is to know about Zen, but we now have a few additional details to share thanks to a computer engineer at CERN. CERN engineer Liviu Valsan recently gave a presentation on technology and market trends for the data center. At around 2 minutes into the discussion, he brought up AMD's Zen architecture with a slide that contained some previously undisclosed details. One of the more interesting revelations was that upcoming x86 processors based on Zen will feature up to 32 physical cores. To achieve a 32-core design, Valsan says AMD will use two 16-core CPUs on a single die with a next-generation interconnect. It has also been previously reported that Zen will offer up to a 40 percent improvement in IPC compared to its current processors as well as symmetric multithreading or SMT akin to Intel HyperThreading. In a 32-core implementation this would result in 64 logical threads of processing.

jones_supa writes: These days, the motivation to use open source software for many people is to avoid backdoors placed by intelligence organizations and to avoid software that has hidden privacy-intruding characteristics. For the operating system and userspace software, open choices are already available. The last remaining island has been the firmware included in various ROM chips in a computer. Libreboot has introduced an open BIOS, but it is not available for newer systems featuring the Intel ME or AMD PSP management features. Talos' Secure Workstation fills this need, providing a modern system with 8-core POWER8 CPU, 132 GB RAM, and open firmware. The product is currently in a pre-release phase where Raptor Engineering is trying to understand if it's possible to do a production run of the machine. If you are interested, it's worth visiting the official website. Adds an anonymous reader about the new system, which rings in at a steep $3100: "While the engineers found solace in the POWER8 architecture with being more open than AMD/Intel CPUs, they still are searching for a graphics card that is open enough to receive the FSF Respect Your Freedom certification." Update: 02/08 18:44 GMT by T : See also Linux hacker and IBM employee Stewart Smith's talk from the just-completed linux.conf.au on, in which he walks through "all of the firmware components and what they do, including the boot sequence from power being applied up to booting an operating system." Update: 02/08 23:30 GMT by T :FSF Licensing & Compliance Manager Joshua Gay wrote to correct the headline originally appeared with this story, which said that the Talos workstation described was "FSF Certified"; that claim was an error I introduced. "The FSF has not certified this hardware," says Gay, "nor is it currently reviewing the hardware for FSF certification." Sorry for the confusion.

New submitter Iamthecheese points to an article which says that a patch published on the Linux Kernel Mailing List indicates that AMD's forthcoming Zen processors will have as many as 32 cores per socket, but notes that while the article's headline says "Confirms," "the article text doesn't bear that out." Still, he writes, There are hints of such from last year. A leaked patch for the 14 nanometer AMD Zeppelin (Family 17h, Model 00h) reveals support for up to 32 cores. Another blog says pretty much the same thing. We recently discussed an announced 4+8 core AMD chip, but nothing like this.

An anonymous reader writes: Tests were carried out at Phoronix of all Ubuntu Long-Term Support releases from the 6.06 "Dapper Drake" release to 16.04 "Xenial Xerus," looking at the long-term performance of (Ubuntu) Linux using a dual-socket AMD Opteron server. Their benchmarks of Ubuntu's LTS releases over 10 years found that the Radeon graphics performance improved substantially, the disk performance was similar while taking into account the switch from EXT3 to EXT4, and that the CPU performance had overall improved for many workloads thanks to the continued evolution of the GCC compiler.

MojoKid writes: AMD apparently wasn't done making announcements back at CES 2016. Today the company has shared news of new APUs, processors, fansink coolers, and motherboard updates. The company has been working with motherboard makers to enable a new wave of socket AM3+ and FM2+ motherboards with support for technologies like USB 3.1 (some with type-C and M.2 solid state drives (SSDs). Many of the updated motherboards are already available. AMD also has a trio of new APUs / processors coming down the pipe --the A10-7860K, the A6-7470K, and the Athlon X4 845. The Athlon X4 845 is a quad-core part, featuring four Excavator-class cores clocked at up to 3.8GHz. The processor has 2MB of L2 cache, 8 PCIe 3.0 lanes, and a TDP of 65W, but no built-in graphics. The A6-7470K is a dual Steamroller-core APU (clocked at up to 4GHz), with 8 GPU cores (at up to 800MHz), 1MB of L2 cache, 16 PCIe lanes, and a 65W TDP. The A10-7860K is a little beefier with four Steamroller cores (clocked up to 4GHz), with 8 GPU cores (clocked up to 757MHz), 1MB of L2 cache, 16 PCIe lanes, and a 65W TDP. Both the 7860K and 7470K are unlocked for more flexible overclocking. Finally, the FX-8370 bundled with AMD's new Wraith cooler will be arriving today at the same price point as the previous edition. According to AMD, the Wraith cooler offers 24% more surface area than the previous PIB cooler and the fan pushes 34% more air.

An anonymous reader writes: AMD has called for the opening up of GPU technology to developers. Nicolas Thibieroz, a senior engineering manager for the company, announced today the launch of GPUOpen, its initiative to provide code and documentation to PC developers, embracing open source and collaborative development with the community. He says, "Console games often tap into low-level GPU features that may not be exposed on PC at the same level of functionality, causing different — and usually less efficient — code paths to be implemented on PC instead. Worse, proprietary libraries or tools chains with "black box" APIs prevent developers from accessing the code for maintenance, porting or optimizations purposes. Game development on PC needs to scale to multiple quality levels, including vastly different screen resolutions." And here's how AMD wants to solve this: "Full and flexible access to the source of tools, libraries and effects is a key pillar of the GPUOpen philosophy. Only through open source access are developers able to modify, optimize, fix, port and learn from software. The goal? Encouraging innovation and the development of amazing graphics techniques and optimizations in PC games." They've begun by posting several technical articles to help developers understand and use various tools, and they say more content will arrive soon.

The Linux 4.5 merge window has been open for the last two weeks; that means that the 4.5-rc1 kernel is expected to emerge, with the official kernel following in about eight weeks. An anonymous reader writes with this top-level list of changes to look for, from Phoronix: Linux 4.5 is set to bring many new features across the kernel's 20 million line code-base. Among the new/improved features are Raspberry Pi 2 support, open-source Raspberry Pi 3D support, NVIDIA Tegra X1 / Jetson TX1 support, an open-source Vivante graphics driver, AMDGPU PowerPlay/re-clocking support, Intel Kaby Lake enablement, a Logitech racing wheel driver, improvements for handling suspended USB devices, new F2FS file-system features, and better Xbox One controller handling.

Theovon writes: For quite some time now, "open hardware" enthusiasts have had access to a number of open source CPUs, including OpenRISC. However, it wasn't until recently that there has been any kind of open source GPU. In 2014, the Vertical Research Group at the University of Wisconsin-Madison announced MIAOW. MIAOW is in many ways a clone of the AMD Southern Islands architecture and can even run some of the same binary code. Unfortunately, MIAOW is missing some key components such as video and memory systems, making it not currently possible to implement fully in hardware. For this, Nyuzi comes to the rescue. Nyuzi (formerly Nyami) has been in development since 2010 and is a fully functional open source GPU inspired by Larrabee. Although architecturally different from the SIMT architectures from AMD and Nvidia, researchers at Binghamton University and several other places have already used it to conduct research on GPUs. A paper (PDF) was published in March 2015 about this processor (one of the authors was the original founder of the Open Graphics Project), and Nyuzi (homepage) can be downloaded from GitHub.

MojoKid writes: Late last year marked the introduction of High Bandwidth Memory (HBM) DRAM courtesy of AMD's Fury family of graphics cards, each of which sports 4GB of HBM. HBM allows these new AMD GPUs to tout an impressive 512GB/sec of memory bandwidth, but it's also just the first iteration of the new memory technology. Samsung has just announced that it has begun mass production of HBM2. Samsung's 4GB HBM2 package is built on a 20 nanometer process. Each package contains four 8-gigabit core dies built on top of a buffer die. Each 4GB HMB2 package is capable of delivering 256GB/sec of bandwidth, which is twice that of first generation HBM DRAM. In the example of NVIDIA's next gen GPU technology, code named Pascal, the new GPU will utilize HBM2 for its frame buffer memory. High-end consumer-grade Pascal boards will ship with 16GB of HBM2 memory (in four, 4GB packages), offering effective memory bandwidth of 1TB/sec (256GB/sec from each HMB2 package). Samsung is also reportedly readying 8GB HBM2 memory packages this year.