Qualcomm Introduces Adreno 5xx Architecture for Snapdragon 820

Subject: Graphics Cards, Processors, Mobile | August 12, 2015 - 07:30 AM |
Tagged: snapdragon 820, snapdragon, siggraph 2015, Siggraph, qualcomm, adreno 530, adreno

Despite the success of the Snapdragon 805 and even the 808, Qualcomm’s flagship Snapdragon 810 SoC had a tumultuous lifespan.  Rumors and stories about the chip and an inability to run in phone form factors without overheating and/or draining battery life were rampant, despite the company’s insistence that the problem was fixed with a very quick second revision of the part. There are very few devices that used the 810 and instead we saw more of the flagship smartphones uses the slightly cut back SD 808 or the SD 805.

Today at Siggraph Qualcomm starts the reveal of a new flagship SoC, Snapdragon 820. As the event coinciding with launch is a graphics-specific show, QC is focusing on a high level overview of the graphics portion of the Snapdragon 820, the updated Adreno 5xx architecture and associated designs and a new camera image signal processor (ISP) aiming to improve quality of photos and recording on our mobile devices.


A modern SoC from Qualcomm features many different processors working in tandem to impact the user experience on the device. While the only details we are getting today focus around the Adreno 530 GPU and Spectra ISP, other segments like connectivity (wireless), DSP, video processing and digital signal processing are important parts of the computing story. And we are well aware that Qualcomm is readying its own 64-bit processor architecture for the Kryo CPU rather than implementing the off-the-shelf cores from ARM used in the 810.

We also know that Qualcomm is targeting a “leading edge” FinFET process technology for SD 820 and though we haven’t been able to confirm anything, it looks very like that this chip will be built on the Samsung 14nm line that also built the Exynos 7420.

But over half of the processing on the upcoming Snapdragon 820 fill focus on visual processing, from graphics to gaming to UI animations to image capture and video output, this chip’s die will be dominated by high performance visuals.

Qualcomm’s lists of target goals for SD 820 visuals reads as you would expect: wanting perfection in every area. Wouldn’t we all love a phone or tablet that takes perfect photos each time, always focusing on the right things (or everything) with exceptional low light performance? Though a lesser known problem for consumers, having accurate color reproduction from capture, through processing and to the display would be a big advantage. And of course, we all want graphics performance that impresses and a user interface that is smooth and reliable while enabling NEW experience that we haven’t even thought of in the mobile form factor. Qualcomm thinks that Snapdragon 820 will be able to deliver on all of that.

Continue reading about the new Adreno 5xx architecture!!

Source: Qualcomm

We hear you like Skylake-U news

Subject: Processors | August 11, 2015 - 06:39 PM |
Tagged: skylake-u, Intel

Fanless Tech just posted slides of Skylake-U the ultraportable version of Skylake, all of which have an impressively low TDP of 15W which can be reduced to either 10W or in some cases all the way down to 7.5W.  As they have done previously all are BGA socketed which means you will not be able to upgraded nor are you likely to see them in desktops, not necessarily a bad thing for this segment of the mobile market but certainly worth noting.


There will be two i7 models and two i5 along with a single i3 version, the top models of which, the Core i7-6600U and Core i5-6300U sport a slightly increased frequency and support for vPro.  Those two models, along with the i7-6500U and i5-6200U will have the Intel HD graphics 520 with frequencies of 300/1050 for the i7's and 300/1000 for the i5 and i3 chips


Along with the Core models will come a single Pentium chip, the 4405U and a pair of Celerons, the 3955U and 3855U.  They will have HD510 graphics, clocks of 300/950 or 300/900 for the Celerons and you will see slight reductions in PCIe and storage subsystems on teh 4405U and 3855U.  The naming scheme is less confusing that some previous generations, a boon for those with family or friends looking for a new laptop who are perhaps not quite as obsessed with processors as we are.



Source: Fanless Tech

Khronos Group at SIGGRAPH 2015

Subject: Graphics Cards, Processors, Mobile, Shows and Expos | August 10, 2015 - 09:01 AM |
Tagged: vulkan, spir, siggraph 2015, Siggraph, opengl sc, OpenGL ES, opengl, opencl, Khronos

When the Khronos Group announced Vulkan at GDC, they mentioned that the API is coming this year, and that this date is intended to under promise and over deliver. Recently, fans were hoping that it would be published at SIGGRAPH, which officially begun yesterday. Unfortunately, Vulkan has not released. It does hold a significant chunk of the news, however. Also, it's not like DirectX 12 is holding a commanding lead at the moment. The headers were public only for a few months, and the code samples are less than two weeks old.


The organization made announcements for six products today: OpenGL, OpenGL ES, OpenGL SC, OpenCL, SPIR, and, as mentioned, Vulkan. They wanted to make their commitment clear, to all of their standards. Vulkan is urgent, but some developers will still want the framework of OpenGL. Bind what you need to the context, then issue a draw and, if you do it wrong, the driver will often clean up the mess for you anyway. The briefing was structure to be evident that it is still in their mind, which is likely why they made sure three OpenGL logos greeted me in their slide deck as early as possible. They are also taking and closely examining feedback about who wants to use Vulkan or OpenGL, and why.

As for Vulkan, confirmed platforms have been announced. Vendors have committed to drivers on Windows 7, 8, 10, Linux, including Steam OS, and Tizen (OSX and iOS are absent, though). Beyond all of that, Google will accept Vulkan on Android. This is a big deal, as Google, despite its open nature, has been avoiding several Khronos Group standards. For instance, Nexus phones and tablets do not have OpenCL drivers, although Google isn't stopping third parties from rolling it into their devices, like Samsung and NVIDIA. Direct support of Vulkan should help cross-platform development as well as, and more importantly, target the multi-core, relatively slow threaded processors of those devices. This could even be of significant use for web browsers, especially in sites with a lot of simple 2D effects. Google is also contributing support from their drawElements Quality Program (dEQP), which is a conformance test suite that they bought back in 2014. They are going to expand it to Vulkan, so that developers will have more consistency between devices -- a big win for Android.


While we're not done with Vulkan, one of the biggest announcements is OpenGL ES 3.2 and it fits here nicely. At around the time that OpenGL ES 3.1 brought Compute Shaders to the embedded platform, Google launched the Android Extension Pack (AEP). This absorbed OpenGL ES 3.1 and added Tessellation, Geometry Shaders, and ASTC texture compression to it. It was also more tension between Google and cross-platform developers, feeling like Google was trying to pull its developers away from Khronos Group. Today, OpenGL ES 3.2 was announced and includes each of the AEP features, plus a few more (like “enhanced” blending). Better yet, Google will support it directly.

Next up are the desktop standards, before we finish with a resurrected embedded standard.

OpenGL has a few new extensions added. One interesting one is the ability to assign locations to multi-samples within a pixel. There is a whole list of sub-pixel layouts, such as rotated grid and Poisson disc. Apparently this extension allows developers to choose it, as certain algorithms work better or worse for certain geometries and structures. There were probably vendor-specific extensions for a while, but now it's a ratified one. Another extension allows “streamlined sparse textures”, which helps manage data where the number of unpopulated entries outweighs the number of populated ones.

OpenCL 2.0 was given a refresh, too. It contains a few bug fixes and clarifications that will help it be adopted. C++ headers were also released, although I cannot comment much on it. I do not know the state that OpenCL 2.0 was in before now.

And this is when we make our way back to Vulkan.


SPIR-V, the code that runs on the GPU (or other offloading device, including the other cores of a CPU) in OpenCL and Vulkan is seeing a lot of community support. Projects are under way to allow developers to write GPU code in several interesting languages: Python, .NET (C#), Rust, Haskell, and many more. The slide lists nine that Khronos Group knows about, but those four are pretty interesting. Again, this is saying that you can write code in the aforementioned languages and have it run directly on a GPU. Curiously missing is HLSL, and the President of Khronos Group agreed that it would be a useful language. The ability to cross-compile HLSL into SPIR-V means that shader code written for DirectX 9, 10, 11, and 12 could be compiled for Vulkan. He expects that it won't take long for a project to start, and might already be happening somewhere outside his Google abilities. Regardless, those who are afraid to program in the C-like GLSL and HLSL shading languages might find C# and Python to be a bit more their speed, and they seem to be happening through SPIR-V.

As mentioned, we'll end on something completely different.


For several years, the OpenGL SC has been on hiatus. This group defines standards for graphics (and soon GPU compute) in “safety critical” applications. For the longest time, this meant aircraft. The dozens of planes (which I assume meant dozens of models of planes) that adopted this technology were fine with a fixed-function pipeline. It has been about ten years since OpenGL SC 1.0 launched, which was based on OpenGL ES 1.0. SC 2.0 is planned to launch in 2016, which will be based on the much more modern OpenGL ES 2 and ES 3 APIs that allow pixel and vertex shaders. The Khronos Group is asking for participation to direct SC 2.0, as well as a future graphics and compute API that is potentially based on Vulkan.

The devices that this platform intends to target are: aircraft (again), automobiles, drones, and robots. There are a lot of ways that GPUs can help these devices, but they need a good API to certify against. It needs to withstand more than an Ouya, because crashes could be much more literal.

Photos and Tests of Skylake (Intel Core i7-6700K) Delidded

Subject: Processors | August 8, 2015 - 05:55 PM |
Tagged: Skylake, Intel, delid, CPU die, cpu, Core i7-6700K

PC Watch, a Japanese computer hardware website, acquired at least one Skylake i7-6700K and removed the heatspreader. With access to the bare die, they took some photos and tested a few thermal compound replacements, which quantifies how good (or bad) Intel's default thermal grease is. As evidenced by the launch of Ivy Bridge and, later, Devil's Canyon, the choice of thermal interface between the die and the lid can make a fairly large difference in temperatures and overclocking.


Image Credit: PC Watch

They chose the vice method for the same reason that Morry chose this method in his i7-4770k delid article last year. This basically uses a slight amount of torque and external pressure or shock to pop the lid off the processor. Despite how it looks, this is considered to be less traumatic than using a razer blade to cut the seal, because human hands are not the most precise instruments and a slight miss could damage the PCB. PC Watch, apparently, needed to use a wrench to get enough torque on the vice, which is transferred to the processor as pressure.


Image Credit: PC Watch

Of course, Intel could always offer enthusiasts with choices in thermal compounds before they put the lid on, which would be safest. How about that, Intel?


Image Credit: PC Watch

With the lid off, PC Watch mentioned that the thermal compound seems to be roughly the same as Devil's Canyon, which is quite good. They also noticed that the PCB is significantly more thin than Haswell, dropping in thickness from about 1.1mm to about 0.8mm. For some benchmarks, they tested it with the stock interface, an aftermarket solution called Prolimatech PK-3, and a liquid metal alloy called Coollaboratory Liquid Pro.


Image Credit: PC Watch

At 4.0 GHz, PK-3 dropped the temperature by about 4 degrees Celsius, while Liquid Metal knocked it down 16 degrees. At 4.6 GHz, PK-3 continued to give a delta of about 4 degrees, while Liquid Metal widened its gap to 20 degrees. It reduced an 88 C temperature to 68 C!


Image Credit: PC Watch

There are obviously limitations to how practical this is. If you were concerned about thermal wear on your die, you probably wouldn't forcibly remove its heatspreader from its PCB to acquire it. That would be like performing surgery on yourself to remove your own appendix, which wasn't inflamed, just in case. Also, from an overclocking standpoint, heat doesn't scale with frequency. Twenty degrees is a huge gap, but even a hundred MHz could eat it up, depending on your die.

It's still interesting for those who try, though.

Source: PC Watch

Check out the architecture at Skylake and Sunrise Point

Subject: Processors | August 5, 2015 - 03:20 PM |
Tagged: sunrise point, Skylake, Intel, ddr4, Core i7-6700K, core i7, 6700k, 14nm

By now you have read through Ryan's review of the new i7-6700 and the ASUS Z170-A as well as the related videos and testing, if not we will wait for you to flog yourself in punishment and finish reading the source material.  Now that you are ready, take a look at what some of the other sites thought about the new Skylake chip and Sunrise Point chipset.  For instance [H]ard|OCP managed to beat Ryan's best overclock, hitting 4.7GHz/3600MHz at 1.32v vCore with some toasty but acceptable CPU temperatures.  The full review is worth looking for and if some of the rumours going around are true you should take H's advice, if you think you want one buy it now.


"Today we finally get to share with you our Intel Skylake experiences. As we like to, we are going to focus on Instructions Per Clock / IPC and overclocking this new CPU architecture. We hope to give our readers a definitive answer to whether or not it is time to make the jump to a new desktop PC platform."

Here are some more Processor articles from around the web:


Source: [H]ard|OCP
Subject: Processors
Manufacturer: Intel

Light on architecture details

Our Intel Skylake launch coverage is intense! Make sure you hit up all the stories and videos that are interesting for you!

The Intel Skylake architecture has been on our radar for quite a long time as Intel's next big step in CPU design. Through leaks and some official information discussed by Intel over the past few months, 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.

Interestingly, due to some shifts in how Intel is releasing Skylake, we are going to be doing a review today with very little information on the Skylake architecture and design (at least officially). While we are very used to the company releasing new information at the Intel Developer Forum along with the launch of a new product, Intel has instead decided to time the release of the first Skylake products with Gamescom in Cologne, Germany. Parts will go on sale today (August 5th) and we are reviewing a new Intel processor without the background knowledge and details that will be needed to really explain any of the changes or differences in performance that we see. It's an odd move honestly, but it has some great repercussions for the enthusiasts that read PC Perspective: Skylake will launch first as an enthusiast-class product for gamers and DIY builders.

For many of you this won't change anything. If you are curious about the performance of the new Core i7-6700K, power consumption, clock for clock IPC improvements and anything else that is measurable, then you'll get exactly what you want from today's article. If you are a gear-head that is looking for more granular details on how the inner-workings of Skylake function, you'll have to wait a couple of weeks longer - Intel plans to release that information on August 18th during IDF.


So what does the addition of DDR4 memory, full range base clock manipulation and a 4.0 GHz base clock on a brand new 14nm architecture mean for users of current Intel or AMD platforms? Also, is it FINALLY time for users of the Core i7-2600K or older systems to push that upgrade button? (Let's hope so!)

Continue reading our review of the Intel Core i7-6700K Skylake processor!!

Manufacturer: Intel

Bioshock Infinite Results

Our Intel Skylake launch coverage is intense! Make sure you hit up all the stories and videos that are interesting for you!

Today marks the release of Intel's newest CPU architecture, code named Skylake. I already posted my full review of the Core i7-6700K processor so, if you are looking for CPU performance and specification details on that part, you should start there. What we are looking at in this story is the answer to a very simple, but also very important question:

Is it time for gamers using Sandy Bridge system to finally bite the bullet and upgrade?

I think you'll find that answer will depend on a few things, including your gaming resolution and aptitude for multi-GPU configuration, but even I was surprised by the differences I saw in testing.


Our testing scenario was quite simple. Compare the gaming performance of an Intel Core i7-6700K processor and Z170 motherboard running both a single GTX 980 and a pair of GTX 980s in SLI against an Intel Core i7-2600K and Z77 motherboard using the same GPUs. I installed both the latest NVIDIA GeForce drivers and the latest Intel system drivers for each platform.

  Skylake System Sandy Bridge System
Processor Intel Core i7-6700K Intel Core i7-2600K
Motherboard ASUS Z170-Deluxe Gigabyte Z68-UD3H B3
Memory 16GB DDR4-2133 8GB DDR3-1600
Graphics Card 1x GeForce GTX 980
2x GeForce GTX 980 (SLI)
1x GeForce GTX 980
2x GeForce GTX 980 (SLI)
OS Windows 8.1 Windows 8.1

Our testing methodology follows our Frame Rating system, which uses a capture-based system to measure frame times at the screen (rather than trusting the software's interpretation).

If you aren't familiar with it, you should probably do a little research into our testing methodology as it is quite different than others you may see online.  Rather than using FRAPS to measure frame rates or frame times, we are using an secondary PC to capture the output from the tested graphics card directly and then use post processing on the resulting video to determine frame rates, frame times, frame variance and much more.

This amount of data can be pretty confusing if you attempting to read it without proper background, but I strongly believe that the results we present paint a much more thorough picture of performance than other options.  So please, read up on the full discussion about our Frame Rating methods before moving forward!!

While there are literally dozens of file created for each “run” of benchmarks, there are several resulting graphs that FCAT produces, as well as several more that we are generating with additional code of our own.

If you need some more background on how we evaluate gaming performance on PCs, just check out my most recent GPU review for a full breakdown.

I only had time to test four different PC titles:

  • Bioshock Infinite
  • Grand Theft Auto V
  • GRID 2
  • Metro: Last Light

Continue reading our look at discrete GPU scaling on Skylake compared to Sandy Bridge!!

Report: Intel Core i7-6700K and i5-6600K Retail Box Photos and Pricing Leak

Subject: Processors | August 3, 2015 - 10:58 AM |
Tagged: Skylake, leak, Intel, i7-6700K, Core i7-6700K

Leaked photos of what appear to be the full retail box version of the upcoming Intel Core i7-6700K and i5-6600K "Skylake" unlocked CPU have appeared on imgur, making the release of these processors feel ever closer.


Is this really the new box graphic for the unlocked i7?

While the authenticity of these photos can't be verified through any official channel, they certainly do look real. We have heard of Skylake leaks - a.k.a. Skyleaks - for a while now, and the rumors point to an August release for these new LGA 1151 chips (sorry LGA 1150 motherboard owners!).


Looks real. But we do live in a Photoshop world...

We only have about four weeks to wait at the most if an August release is, in fact, imminent. If not, I blame Jeremy for getting our hopes up with terms like Skyleak™. I encourage you to direct all angry correspondence to his inbox.


These boxes are very colorful (or colourful, if you will)

Update: A new report has emerged with US retail pricing for the upcoming Skylake lineup. Here is the chart from WCCFTech:


Chart taken from WCCFTech

The pricing of the top i7 part at $316 would be a welcome reduction from the current $339 retail of the i7-4790K. Now whether the 6700K can beat out that Devil's Canyon part remains to be seen. Doubtless we will have benchmarks and complete coverage once any official release is made by Intel for these parts.

Source: imgur

Iris Pro on Linux

Subject: Processors | July 31, 2015 - 03:37 PM |
Tagged: iris pro, Broadwell, linux, i7-5775C

The graphics core of new CPUs used to have issues on Linux at launch but recently this has become much less of an issue.  The newly released Iris Pro on the 5770C follows this trend as you can see in the benchmarks at Phoronix.  The OpenGL performance is a tiny bit slower overall on Linux, apart from OpenArena, but not enough to ruin your gaming experience.  With a new kernel on the horizon and a community working with the new GPU you can expect the performance gap to narrow.  Low cost gaming on a Linux machine becomes more attractive every day.


"Resulting from the What Windows 10 vs. Linux Benchmarks Would You Like To See and The Phoronix Test Suite Is Running On Windows 10, here are our first benchmarks comparing the performance of Microsoft's newly released Windows 10 Pro x64 against Fedora 22 when looking at the Intel's OpenGL driver performance across platforms."

Here are some more Processor articles from around the web:



Source: Phoronix

AMD A8-7670K (Godavari) Launches with Steamroller

Subject: Processors | July 22, 2015 - 09:56 PM |
Tagged: amd, APU, Godavari, a8, a8-7670k

AMD's Godavari architecture is the last one based on Bulldozer, which will hold the company's product stack over until their Zen architecture arrives in 2016. The A10-7870K was added a month ago, with a 95W TDP at a MSRP of $137 USD. This involved a slight performance bump of +200 MHz at its base frequency, but a +100 MHz higher Turbo than its predecessor when under high load. More interesting, it does this at the same TDP and the same basic architecture.


Remember that these are AMD's benchmarks.

The refresh has been expanded to include the A8-7670K. Some sites have reported that this uses the Excavator architecture as seen in Carrizo, but this is not the case. It is based on Steamroller. This product has a base clock of 3.6 GHz with a Turbo of up to 3.9 GHz. This is a +300 MHz Base and +100 MHz Turbo increase over the previous A8-7650K. Again, this is with the same architecture and TDP. The GPU even received a bit of a bump, too. It is now clocked at 757 MHz versus the previous generation's 720 MHz with all else equal, as far as I can tell. This should lead to a 5.1% increase in GPU compute throughput.

The A8-7670K just recently launched for an MSRP of $117.99. This 20$ saving should place it in a nice position below the A10-7870K for mainstream users.

Source: AMD