Comment Re:Deja vu! (Score 1) 89
Today's launch is for reviews, with performance results, etc. That previous post was just the "announcement".
Submission + - AMD RX 480 offers Best-in-class performance for $199/$239
Vigile writes: It's been a terribly long news cycle, but today is finally the day reviews and sales start of the new AMD Radeon RX 480 graphics card based on the company's latest Polaris architecture and built on 14nm FinFET process technology. With a starting price tag of $199 for the 4GB model and $239 for the 8GB, the RX 480 has some interesting performance characteristics. Compared to the GeForce GTX 970, currently selling for around $280, the RX 480 performs +/- 5-10% in DX11 games but PC Perspective found that the RX 480 was as much as 40% faster in DX12 titles like Gears of War, Hitman and Rise of the Tomb Raider. Compared to previous AMD products, the RX 480 is as fast as a Radeon R9 390 but uses just 150 watts compared to 275 watts for the previous generation! Chances are that NVIDIA will have a competing product based on Pascal available sometime in July, so AMD's advantage may be short lived; but in the meantime the Radeon RX 480 is clearly the best GPU for $200.
Submission + - New tool offers look at performance of UWP games on Windows
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.
Submission + - Microsoft Losing Ground on Windows Store and UWP for Gaming
Vigile writes: Microsoft has big plans to try and merge the experiences of the Xbox One and Windows for gaming but the push back from the community and from major developers and personalities is mounting. Earlier this week PC Perspective posted a story that detailed the controversy around DX12 performance analysis without an exclusive full screen mode, changes to multi-GPU configurations and even compatibility issues with variable refresh that crop up from games from the Windows Store. Microsoft's only official response so far as been that it is listening to feedback and plans to address it with upcoming changes. Now today, Epic's Tim Sweeney has posted an editorial at The Guardian with an even more dramatic tone, saying that UWP (Unified Windows Platform) "can, should, must and will, die..." Clearly the stakes are being placed in the ground and even damage control from Phil Spencer on Twitter isn't likely to hold back angry PC users.
Submission + - Valve releases SteamVR Perf Test to measure your PC (pcper.com)
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?
Submission + - Samsung Returns to 2D, releases 250GB 750 EVO for $75
Vigile writes: Even with Samsung pushing forward into 3D NAND with 32-layer technologies used in SSDs like the 850 Pro and the recently released M.2 PCIe NVMe 950 Pro, there is still plenty of traditional 2D planar memory being fabbed on production lines. To utilize that inventory Samsung is shifting its low capacity SSDs back to it, announcing the 750 EVO drives today available in 120GB and 250GB capacities. Though based largely on the very popular, but sometimes troubled, 840 EVO specs, the new drives are faster and start with some impressively low prices. The starting MSRP for the 250GB 750 EVO will be just $75.
Submission + - Triple M.2 NVMe RAID-0 Testing Proves Latency Reductions
Vigile writes: The gang over at PC Perspective just posted a story that looks at a set of three M.2 form factor Samsung 950 Pro NVMe PCIe SSDs in a RAID-0 array, courtesy of a new motherboard from Gigabyte that included three M.2 slots. The pure bandwidth available in this configuration is amazing, breaching 3.3 GB/s on reads and 3.0 GB/s on writes. But what is more interesting is a new testing methodology that allows for individual storage IO latency capturing, giving us a look at performance of SSDs in all configurations. What PC Perspective proved here is that users often claiming that RAIDs "feel faster" despite a lack of bandwidth result to prove it, are likely correct. Measurements now show that the latency of IO operations improves dramatically as you add drives to an array, giving a feeling of "snappiness" to a system beyond even what a single SSD can offer. PC Perspective's new testing demonstrates the triple RAID-0 array having just 1/6th of the latency of a single drive.
Submission + - Samsung 950 Pro Brings NVMe to M.2, over 2.5GB/s
Vigile writes: Samsung just released its first non-OEM, consumer level NVMe enabled SSD, the 950 Pro series. This drive will ship in an M.2 form factor rather than a 2.5-in drive size that is the standard for users today, allowing installation into notebooks, small form factor PCs and desktop PCs that have at least one M.2 slot on-board. It peaks at 512GB capacity today but Samsung promises a 1TB version using 48-layer VNAND in 2016. The NVMe protocol allows much better performance directly over the PCIe bus without the overhead of the AHCI protocol used in hard drives and previous SSDs. PC Perspective's review has performance breaking the 2.5GB/s read speed level while also introducing an entirely new type of performance evaluation for SSDs centered around latency distribution of IOs. By measuring how long each IO takes, rather than reporting only an average, the performance of an SSD can be determined on a per-workflow basis and drives can be compared in an entirely new light. There is a lot of detail on to be read over and digested but again the new NVMe Samsung 950 Pro impresses.
Submission + - Fable Legends DX12 Benchmark Stressing High End GPUs
Vigile writes: In preparation for the release of the free-to-play Fable Legends game on both Xbox One and PC this winter, Microsoft and Lionhead Studios released a benchmark today that allows users to test performance of their PC hardware configuration with a DirectX 12 based game engine that pushes the boundaries of render quality. Based on a modified UE4 engine, Fable Legends includes support for asynchronous compute shaders, manual resource barrier tracking and explicit memory management, all new to the DX12 API. Unlike the previous DX12 benchmark, Ashes of the Singularity, that focused mainly on high draw call counts and mass quantities of on-screen units, Fable Legends takes a more standard approach, attempting to improve image quality and shadow reproduction with the new API. PC Perspective has done some performance analysis with the new benchmark and a range of graphics cards, finding that while NVIDIA still holds the lead at the top spot (GTX 980 Ti vs Fury X), the AMD Radeon mid-range products offer better performance (and better value) than the comparable GeForce parts.
Submission + - The AMD Radeon R9 Nano - Flagship Performance at 6 Inches
Vigile writes: Back when AMD announced it would be producing an even smaller graphics card than the Fury X, but based on the same full-sized Fiji GPU, many people wondered just how they would be able to pull it off. Using 4096 stream processors, a 4096-bit memory bus with 4GB of HBM (high bandwidth memory) and a clock speed rated "up to" 1000 MHz, the new AMD Radeon R9 Nano looked to be an impressive card. Today PC Perspective has a review of the R9 Nano and though there are some quirks, including pronounced coil whine and a hefty $650 price tag, it offers nearly the same performance as the non-X Radeon R9 Fury card at 100 watts lower TDP! It is able to do that by dynamically adjusting the clock speed from ~830 MHz to 1000 MHz depending on the workload, always maintaining a peak power draw of just 175 watts. All of this is packed into a 6 inch PCB — smaller than any other enthusiast class GPU to date, making it a perfect pairing for SFF cases that demand smaller components. The R9 Nano is expensive though with the same asking price as AMD's own R9 Fury X and the GeForce GTX 980 Ti.
Submission + - DirectX 12 Performance Tested in Ashes of the Singularity
Vigile writes: The future of graphics APIs lies in DirectX 12 and Vulkan, both built to target GPU hardware at a lower level than previously available. The advantages are better performance, better efficiency on all hardware and more control for the developer that is willing to put in the time and effort to understand the hardware in question. Until today we have only heard or seen theoretical "peak" performance claims of DX12 compared to DX11. PC Perspective just posted an article that uses a pre-beta version of Ashes of the Singularity, an upcoming RTS utilizing the Oxide Games Nitrous engine, to evaluate and compare DX12's performance claims and gains against DX11. In the story we find five different processor platforms tested with two different GPUs and two different resolutions. Results are interesting and show that DX12 levels the playing field for AMD, with its R9 390X gaining enough ground in DX12 to overcome a significant performance deficit that exists using DX11 to the GTX 980.
Submission + - Intel's Skylake Architecture Comes to Enthusiasts First, Reviewed
Vigile writes: The Intel Skylake architecture has been on our radar for quite a long time as Intel's next big step in CPU design. We know at least a handful of details: DDR4 memory support, 14nm process technology, modest IPC gains and impressive GPU improvements. But the details have remained a mystery on how the "tock" of Skylake on the 14nm process technology will differ from Broadwell and Haswell. That changes today with the official release of the "K" SKUs of Skylake — the unlocked, enthusiast class parts for DIY PC builders. PC Perspective has a full review of the Core i7-6700K with benchmarks as well as discrete GPU and gaming testing that shows Skylake is an impressive part. IPC gains on Skylake over Haswell are modest but noticeable, and IGP performance is as much as 50% higher than Devil's Canyon. Based on that discrete GPU testing, all those users still on Nehalem and Sandy Bridge might finally have a reason to upgrade to Skylake.
Submission + - Khronos Group Announces Vulkan to Compete Against DirectX 12.
Phopojijo writes: The Khronos Group has announced the Vulkan API for compute and graphics. Its goal is to compete against DirectX 12. It has some interesting features, such as queuing to multiple GPUs and an LLVM-based bytecode for its shading language to remove the need for a compiler from the graphics drivers. Also, the API allows graphics card vendors to support Vulkan with drivers back to Windows XP "and beyond".
Submission + - NVIDIA GTX 970 Specifications Corrected, Memory Pools Explained (pcper.com)
Vigile writes: Over the weekend NVIDIA sent out its first official response to the claims of hampered performance on the GTX 970 and a potential lack of access to 1/8th of the on-board memory. Today NVIDIA has clarified the situation again, this time with some important changes to the specifications of the GPU. First, the ROP count and L2 cache capacity of the GTX 970 were incorrectly reported at launch (last September). The GTX 970 has 52 ROPs and 1792 KB of L2 cache compared to the GTX 980 that has 64 ROPs and 2048 KB of L2 cache; previously both GPUs claimed to have identical specs. Because of this change, one of the 32-bit memory channels is accessed differently, forcing NVIDIA to create 3.5GB and 0.5GB pools of memory to improve overall performance for the majority of use cases. The smaller, 500MB pool operates at 1/7th the speed of the 3.5GB pool and thus will lower total graphics system performance by 4-6% when added into the memory system. That occurs when games request MORE than 3.5GB of memory allocation though, which happens only in extreme cases and combinations of resolution and anti-aliasing. Still, the jury is out on whether NVIDIA has answered enough questions to temper the fire from consumers.
Submission + - NVIDIA Responds to GTX 970 Memory Issue (pcper.com)
Vigile writes: Over the past week or so, owners of the GeForce GTX 970 have found several instances where the GPU was unable or unwilling to address memory capacities over 3.5GB despite having 4GB of on-board frame buffer. Specific benchmarks were written to demonstrate the issue and users even found ways to configure games to utilize more than 3.5GB of memory using DSR and high levels of MSAA. While the GTX 980 can access 4GB of its memory, the GTX 970 appeared to be less likely to do so and would see a dramatic performance hit when it did. NVIDIA responded today saying that the GTX 970 has "fewer crossbar resources to the memory system" as a result of disabled groups of cores called SMMs. NVIDIA states that "to optimally manage memory traffic in this configuration, we segment graphics memory into a 3.5GB section and a 0.5GB section" and that the GPU has "higher priority" to the larger pool. The question that remains is should this affect gamers' view of the GTX 970? If performance metrics already take the different memory configuration into account, then I don't see the GTX 970 declining in popularity.
Slashdot Top Deals
"If a computer can't directly address all the RAM you can use, it's just a toy." -- anonymous comp.sys.amiga posting, non-sequitir
