Podcast #387 - ASUS PB328Q, Samsung 750 EVO SSD, the release of Vulkan and more!

Subject: General Tech | February 18, 2016 - 02:16 PM |
Tagged: x16 LTE, vulkan, video, ssd, Samsung, qualcomm, podcast, pb328q, opengl, nvidia, micron, Khronos, gtx 950, asus, apple, 840 evo, 750ti, 750 evo, 3d nand

PC Perspective Podcast #387 - 02/18/2016

Join us this week as we discuss the ASUS PB328Q, Samsung 750 EVO SSD, the release of Vulkan and more!

You can subscribe to us through iTunes and you can still access it directly through the RSS page HERE.

The URL for the podcast is: http://pcper.com/podcast - Share with your friends!

Hosts: Ryan Shrout, Jeremy Hellstrom, Josh Walrath, and Allyn Malventano

Program length: 1:34:18

  1. Week in Review:
  2. 0:35:00 This episode of the PC Perspective Podcast is brought to you by Audible, the world's leading provider of audiobooks with more than 180,000 downloadable titles across all types of literature including fiction, nonfiction, and periodicals. For your free audiobook, go to audible.com/pcper
  3. News items of interest:
  4. 1:07:00 This episode of PC Perspective Podcast is brought to you by Braintree. Even the best mobile app won’t work without the right payments API. That’s where the Braintree v.0 SDK comes in. One amazingly simple integration gives you every way to pay. Try out the sandbox and see for yourself at braintree­payments.com/pcper
  5. Hardware/Software Picks of the Week
  6. Closing/outro

Subscribe to the PC Perspective YouTube Channel for more videos, reviews and podcasts!!

More Tomb Raiding and a new bundle from NVIDIA

Subject: General Tech | February 17, 2016 - 01:47 PM |
Tagged: gaming, tomb raider, nvidia, bundle, the division

The benchmarks that Ryan ran on the new Tomb Raider game were popular enough that it seems worth giving you a second opinion, in this case from [H]ard|OCP.  They use version 1.0 build 610.1_64 of the game, along with Crimson Edition 16.1.1 Hotfix and GeForce 361.75 during their testing.  For 1080p performance they tested the R9 380X 4GB against the GTX 960 4GB which saw AMD's card come out on top with similar results when testing the R9 390 against the GeForce GTX 970 at 1440p.  At the top end the R9 390X and GTX 980 performed similarly in single GPU configurations with AMD beating NVIDIA in multi GPU tests.  They also tried the TitanX, Fury and FuryX in single GPU configurations at 4k ... it did not go well.

1455189919EDyKUcGV8E_1_1.gif

Also worth noting is the new bundle from NVIDIA, if you pick up a GeForce GTX 970 or better GPU or purchase a notebook with a GeForce GTX 970M, 980M or 980 the you are eligible for a free copy of The Division.  Click here to redeem your code or to find out how to get one.

tom-clancys-header-gf-glp.png

"A new Tomb Raider game is out, Rise of the Tomb Raider. We take RoTR and find out how it performs and compares on no less than 14 of today's latest video card offerings from the AMD and NVIDIA GPU lineups from top-to-bottom using the latest drivers and game patch v1.0 build 610.1_64."

Here is some more Tech News from around the web:

Gaming

Source: [H]ard|OCP

Report: NVIDIA Working on Another GeForce GTX 950 GPU

Subject: Graphics Cards | February 16, 2016 - 12:01 PM |
Tagged: rumor, report, nvidia, Maxwell 2.0, GTX 950 SE, GTX 950 LP, gtx 950, gtx 750, graphics card, gpu

A report from VideoCardz.com claims that NVIDIA is working on another GTX 950 graphics card, but not the 950 Ti you might have expected.

gtx950.jpg

Reference GTX 950 (Image credit: NVIDIA)

While the GTX 750 Ti was succeeded by the GTX 950 in August of last year, the higher specs for this new GPU came at the cost of a higher TDP (90W vs. 60W). This new rumored GTX 950, which might be called either 950 SE or 950 LP according to the report, would be a lower power version of the GTX 950, and would actually have a lot more in common with the outgoing GTX 750 Ti than the plain GTX 750 as we can see from this chart:

chart.png

(Image credit: VideoCardz)

As you can see the GTX 750 Ti is based on GM107 (Maxwell 1.0) and has 640 CUDA cores, 40 TUs, 16 ROPs, and it operates at 1020 MHz Base/1085 MHz Boost clocks. The reported specs of this new GTX 950 SE/LP would be nearly identical, though based on GM206 (Maxwell 2.0) and offering greater memory bandwidth (and slightly higher power consumption).

The VideoCardz report was sourced from Expreview, which claimed that this GTX 950 SE/LP product would arrive next month at some point. This report is a little more vague than some of the rumors we see, but it could very well be that NVIDIA has a planned replacement for the remaining Maxwell 1.0 products on the market. I would have personally expected to see a"Ti” product before any “LE/LP” version of the GTX 950, and this reported name seems more like an OEM product than a retail part. We will have to wait and see if this report is accurate.

Source: VideoCardz

Podcast #386 - Logitech G810, Phanteks Enthoo EVOLV ITX, GTX 980 Ti VR Edition and more!

Subject: General Tech | February 11, 2016 - 12:27 PM |
Tagged: vr edition, video, UMC, ue4, podcast, phanteks, nvidia, logitech, GTX 980 Ti, g810, evga, enthoo evolv itx, asrtock, arm, amd, 28HPCU

PC Perspective Podcast #386 - 02/10/2016

Join us this week as we discuss the Logitech G810, Phanteks Enthoo EVOLV ITX, GTX 980 Ti VR Edition and more!

You can subscribe to us through iTunes and you can still access it directly through the RSS page HERE.

The URL for the podcast is: http://pcper.com/podcast - Share with your friends!

Hosts: Ryan Shrout, Jeremy Hellstrom, Josh Walrath, and Allyn Malventano

Program length: 1:30:34

  1. Week in Review:
  2. 0:36:45 This week’s podcast is brought to you by Casper. Use code PCPER at checkout for $50 towards your order!
  3. News items of interest:
  4. Hardware/Software Picks of the Week
  5. Closing/outro

Subscribe to the PC Perspective YouTube Channel for more videos, reviews and podcasts!!

Author:
Manufacturer: Various

Early testing for higher end GPUs

UPDATE 2/5/16: Nixxes released a new version of Rise of the Tomb Raider today with some significant changes. I have added another page at the end of this story that looks at results with the new version of the game, a new AMD driver and I've also included some SLI and CrossFire results.

I will fully admit to being jaded by the industry on many occasions. I love my PC games and I love hardware but it takes a lot for me to get genuinely excited about anything. After hearing game reviewers talk up the newest installment of the Tomb Raider franchise, Rise of the Tomb Raider, since it's release on the Xbox One last year, I've been waiting for its PC release to give it a shot with real hardware. As you'll see in the screenshots and video in this story, the game doesn't appear to disappoint.

rotr-screen1.jpg

Rise of the Tomb Raider takes the exploration and "tomb raiding" aspects that made the first games in the series successful and applies them to the visual quality and character design brought in with the reboot of the series a couple years back. The result is a PC game that looks stunning at any resolution, but even more so in 4K, that pushes your hardware to its limits. For single GPU performance, even the GTX 980 Ti and Fury X struggle to keep their heads above water.

In this short article we'll look at the performance of Rise of the Tomb Raider with a handful of GPUs, leaning towards the high end of the product stack, and offer up my view on whether each hardware vendor is living up to expectations.

Continue reading our look at GPU performance in Rise of the Tomb Raider!!

NVIDIA Stops SHIELD Android 6.0 Update After Wi-Fi Issues

Subject: Mobile | February 4, 2016 - 09:39 AM |
Tagged: wi-fi, shield tablet, shield, ota update, nvidia, android 6.0

NVIDIA has pulled the Android 6.0 OTA update for the original SHEILD (pre-K1) tablet after users experienced wi-fi connection issues. A post on NVIDIA's official forums explains:

"We have temporarily turned off the OTA update until we understand why a few users are losing WiFi connection after updating their tablet to OTA 4.0."

shield.jpg

(Image: Android Police)

The post is authored by Manuel Guzman of NVIDIA Customer Care, and includes a list of potential fixes:

  • Reboot your tablet 2-3 times. If this fails, power cycle your tablet 3-4 times (not reboot but complete power off). If this does not work, charge your tablet to 100% and attempt again a couple of times or so.
  • Factory reset your tablet. Make sure you backup any important files before you perform this step.
  • A couple of users reporting their WiFi coming back after leaving their tablet powered off for a few hours. Try leaving your tablet powered off for a few hours and then turn the device back on.

Users who still have issues connecting are asked to navigate to the Advanced W-Fi page on their tablet, and then to "take a screenshot and email the picture to driverfeedback@nvidia.com".

GDDR5X Memory Standard Gets Official with JEDEC

Subject: Graphics Cards, Memory | January 22, 2016 - 11:08 AM |
Tagged: Polaris, pascal, nvidia, jedec, gddr5x, GDDR5, amd

Though information about the technology has been making rounds over the last several weeks, GDDR5X technology finally gets official with an announcement from JEDEC this morning. The JEDEC Solid State Foundation is, as Wikipedia tells us, an "independent semiconductor engineering trade organization and standardization body" that is responsible for creating memory standards. Getting the official nod from the org means we are likely to see implementations of GDDR5X in the near future.

The press release is short and sweet. Take a look.

ARLINGTON, Va., USA – JANUARY 21, 2016 –JEDEC Solid State Technology Association, the global leader in the development of standards for the microelectronics industry, today announced the publication of JESD232 Graphics Double Data Rate (GDDR5X) SGRAM.  Available for free download from the JEDEC website, the new memory standard is designed to satisfy the increasing need for more memory bandwidth in graphics, gaming, compute, and networking applications.

Derived from the widely adopted GDDR5 SGRAM JEDEC standard, GDDR5X specifies key elements related to the design and operability of memory chips for applications requiring very high memory bandwidth.  With the intent to address the needs of high-performance applications demanding ever higher data rates, GDDR5X  is targeting data rates of 10 to 14 Gb/s, a 2X increase over GDDR5.  In order to allow a smooth transition from GDDR5, GDDR5X utilizes the same, proven pseudo open drain (POD) signaling as GDDR5.

“GDDR5X represents a significant leap forward for high end GPU design,” said Mian Quddus, JEDEC Board of Directors Chairman.  “Its performance improvements over the prior standard will help enable the next generation of graphics and other high-performance applications.”

JEDEC claims that by using the same signaling type as GDDR5 but it is able to double the per-pin data rate to 10-14 Gb/s. In fact, based on leaked slides about GDDR5X from October, JEDEC actually calls GDDR5X an extension to GDDR5, not a new standard. How does GDDR5X reach these new speeds? By doubling the prefech from 32 bytes to 64 bytes. This will require a redesign of the memory controller for any processor that wants to integrate it. 

gddr5x.jpg

Image source: VR-Zone.com

As for usable bandwidth, though information isn't quoted directly, it would likely see a much lower increase than we are seeing in the per-pin statements from the press release. Because the memory bus width would remain unchanged, and GDDR5X just grabs twice the chunk sizes in prefetch, we should expect an incremental change. No mention of power efficiency is mentioned either and that was one of the driving factors in the development of HBM.

07-bwperwatt.jpg

Performance efficiency graph from AMD's HBM presentation

I am excited about any improvement in memory technology that will increase GPU performance, but I can tell you that from my conversations with both AMD and NVIDIA, no one appears to be jumping at the chance to integrate GDDR5X into upcoming graphics cards. That doesn't mean it won't happen with some version of Polaris or Pascal, but it seems that there may be concerns other than bandwidth that keep it from taking hold. 

Source: JEDEC

GDC 2016 Sessions Are Up and DirectX 12 / Vulkan Are There

Subject: General Tech | January 20, 2016 - 07:06 PM |
Tagged: vulkan, ue4, nvidia, Intel, gdc 2016, GDC, epic games, DirectX 12, Codemasters, arm, amd

The 30th Game Developers Conference (GDC) will take place on March 14th through March 18th, with the expo itself starting on March 16th. The sessions have been published at some point, with DX12 and Vulkan prominently featured. While the technologies have not been adopted as quickly as advertised, the direction is definitely forward. In fact, NVIDIA, Khronos Group, and Valve have just finished hosting a developer day for Vulkan. It is coming.

gdc-2016-logo.png

One interesting session will be hosted by Codemasters and Intel, which discusses bringing the F1 2015 engine to DirectX 12. It will highlight a few features they implemented, such as voxel based raytracing using conservative rasterization, which overestimates the size of individual triangles so you don't get edge effects on pixels that are partially influenced by an edge that cuts through a tiny, but not negligible, portion of them. Sites like Game Debate (Update: Whoops, forgot the link) wonder if these features will be patched in to older titles, like F1 2015, or if they're just R&D for future games.

Another keynote will discuss bringing Vulkan to mobile through Unreal Engine 4. This one will be hosted by ARM and Epic Games. Mobile processors have quite a few cores, albeit ones that are slower at single-threaded tasks, and decent GPUs. Being able to keep them loaded will bring their gaming potential up closer to the GPU's theoretical performance, which has surpassed both the Xbox 360 and PlayStation 3, sometimes by a factor of 2 or more.

Many (most?) slide decks and video recordings are available for free after the fact, but we can't really know which ones ahead of time. It should be an interesting year, though.

Source: GDC

Phoronix Tests Almost a Decade of GPUs

Subject: Graphics Cards | January 20, 2016 - 03:26 PM |
Tagged: nvidia, linux, tesla, fermi, kepler, maxwell

It's nice to see long-term roundups every once in a while. They do not really provide useful information for someone looking to make a purchase, but they show how our industry is changing (or not). In this case, Phoronix tested twenty-seven NVIDIA GeForce cards across four architectures: Tesla, Fermi, Kepler, and Maxwell. In other words, from the GeForce 8 series all the way up to the GTX 980 Ti.

phoronix-2016-many-nvidia-roundup.jpg

Image Credit: Phoronix

Nine years of advancements in ASIC design, with a doubling time-step of 18 months, should yield a 64-fold improvement. The number of transistors falls short, showing about a 12-fold improvement between the Titan X and the largest first-wave Tesla, although that means nothing for a fabless semiconductor designer. The main reason why I include this figure is to show the actual Moore's Law trend over this time span, but it also highlights the slowdown in process technology.

Performance per watt does depend on NVIDIA though, and the ratio between the GTX 980 Ti and the 8500 GT is about 72:1. While this is slightly better than the target 64:1 ratio, these parts are from very different locations in their respective product stacks. Swapping the 8500 GT for the following year's 9800 GTX, which leads to a comparison between top-of-the-line GPUs of their respective times, and you see a 6.2x improvement in performance per watt versus the GTX 980 Ti. On the other hand, that part was outstanding for its era.

I should note that each of these tests take place on Linux. It might not perfectly reflect the landscape on Windows, but again, it's interesting in its own right.

Source: Phoronix

Report: NVIDIA Preparing GeForce GTX 980MX and 970MX Mobile GPUs

Subject: Graphics Cards | January 19, 2016 - 10:31 AM |
Tagged: rumor, report, nvidia, GTX 980MX, GTX 980M, GTX 970MX, GTX 970M, geforce

NVIDIA is reportedly preparing faster mobile GPUs based on Maxwell, with a GTX 980MX and 970MX on the way.

img-01.jpg

The new GTX 980MX would sit between the GTX 980M and the laptop version of the full GTX 980, with 1664 CUDA cores (compared to 1536 with the 980M), 104 Texture Units (up from the 980M's 96), a 1048 MHz core clock, and up to 8 GB of GDDR5. Memory speed and bandwidth will reportedly be identical to the GTX 980M at 5000 MHz and 160 GB/s respectively, with both GPUs using a 256-bit memory bus.

The GTX 970MX represents a similar upgrade over the existing GTX 970M, with CUDA Core count increased from 1280 to 1408, Texture Units up from 80 to 88, and 8 additional raster devices available (56 vs. 48). Both the 970M and 970MX use 192-bit GDDR5 clocked at 5000 MHz, and available with the same 3 GB or 6 GB of frame buffer.

WCCFtech prepared a chart to demonstrate the differences between NVIDIA's mobile offerings:

Model GeForce GTX 980 Laptop Version GeForce GTX 980MX

GeForce GTX 980M

GeForce GTX 970MX GeForce GTX 970M GeForce GTX 965M

GeForce GTX 960M

Architecture

Maxwell Maxwell Maxwell Maxwell Maxwell Maxwell Maxwell
GPU GM204 GM204 GM204 GM204 GM204 GM204 GM107
CUDA Cores 2048 1664 1536 1408 1280 1024 640
Texture Units 128 104 96 88 80 64 40
Raster Devices 64 64 64 56 48 32 16
Clock Speed 1218 MHz 1048 MHz 1038 MHz 941 MHz 924 MHz 950 MHz 1097 MHz
Memory Bus 256-bit 256-bit 256-bit 192-bit 192-bit 128-bit 128-bit
Frame Buffer 8 GB GDDR5 8/4 GB GDDR5 8/4 GB GDDR5 6/3 GB GDDR5 6/3 GB GDDR5 4 GB GDDR5 4 GB GDDR5
Memory Frequency 7008 MHz 5000 MHz 5000 MHz 5000 MHz 5000 MHz 5000 MHz 5000 MHz
Memory Bandwidth 224 GB/s 160 GB/s 160 GB/s 120 GB/s 120 GB/s 80 GB/s 80 GB/s
TDP ~150W 125W 125W 100W 100W 90W 75W

These new GPUs will reportedly be based on the same Maxwell GM204 core, and TDPs are apparently unchanged at 125W for the GTX 980MX, and 100W for the 970MX.

We will await any official announcement.

Source: WCCFtech