Subject: Processors | September 27, 2015 - 07:01 AM | Scott Michaud
Tagged: Skylake, iris pro, Intel, Broadwell
Thanks to the Tech Report for pointing this out, but some recent stock level troubles with Skylake and Broadwell have been overcome. Both Newegg and Amazon have a few Core i7-6700Ks that are available for purchase, and both also have the Broadwell Core i7s and Core i5s with Iris Pro graphics. Moreover, Microcenter has stock of the Skylake processor at some of their physical stores with the cheapest price tag of all, but they do not have the Broadwell chips with Iris Pro (they are not even listed).
You'll notice that Skylake is somewhat cheaper than the Core i7 Broadwell, especially on Newegg. That is somewhat expected, as Broadwell with Iris Pro is a larger die than Skylake with an Intel HD 530. A bigger die means that fewer can be cut from a wafer, and thus each costs more (unless the smaller die has a relatively high amount of waste to compensate of course). Also, if you go with Broadwell, you will miss out on the Z170 chipset, because they still use Haswell's LGA-1150 socket.
On the other hand, despite being based on an older architecture and having much less thermal headroom, you can find some real-world applications that really benefit from the 128 MB of L4 Cache that Iris Pro brings, even if the iGPU itself is unused. The graphics cache can be used by the main processor. In Project Cars, again, according to The Tech Report, the i7-5775C measured a 5% increase in frame rate over the newer i7-6700k -- when using a GeForce GTX 980. Granted, this was before the FCLK tweak on Skylake so there are a few oranges mixed with our apples. PCIe rates might be slightly different now.
Regardless, they're all available now. If you were awaiting stock, have fun.
Subject: Graphics Cards, Processors | September 17, 2015 - 09:33 PM | Scott Michaud
Tagged: Skylake, kaby lake, iris pro, Intel, edram
Update: Sept 17, 2015 @ 10:30 ET -- To clarify: I'm speaking of socketed desktop Skylake. There will definitely be Iris Pro in the BGA options.
Before I begin, the upstream story has a few disputes that I'm not entirely sure on. The Tech Report published a post in September that cited an Intel spokesperson, who said that Skylake would not be getting a socketed processor with eDRAM (unlike Broadwell did just before Skylake launched). This could be a big deal, because the fast, on-processor cache could be used by the CPU as well as the RAM. It is sometimes called “128MB of L4 cache”.
Later, ITWorld and others posted stories that said Intel killed off a Skylake processor with eDRAM, citing The Tech Report. After, Scott Wasson claimed that a story, which may or may not be ITWorld's one, had some “scrambled facts” but wouldn't elaborate. Comparing the two articles doesn't really illuminate any massive, glaring issues, but I might just be missing something.
Update: Sept 18, 2015 @ 9:45pm -- So I apparently misunderstood the ITWorld article. They were claiming that Broadwell-C was discontinued, while The Tech Report was talking about Socketed Skylake with Iris Pro. I thought they both were talking about the latter. Moreover, Anandtech received word from Intel that Broadwell-C is, in fact, not discontinued. This is odd, because ITWorld said they had confirmation from Intel. My guess is that someone gave them incorrect information. Sorry that it took so long to update.
In the same thread, Ian Cutress of Anandtech asked whether The Tech Report benchmarked the processor after Intel tweaked its FCLK capabilities, which Scott did not (but is interested in doing so). Intel addressed a slight frequency boost between the CPU and PCIe lanes after Skylake shipped, which naturally benefits discrete GPUs. Since the original claim was that Broadwell-C is better than Skylake-K for gaming, giving a 25% boost to GPU performance (or removing a 20% loss, depending on how you look at it) could tilt Skylake back above Broadwell. We won't know until it's benchmarked, though.
Iris Pro and eDRAM, while skipping Skylake, might arrive in future architectures though, such as Kaby Lake. It seems to have been demonstrated that, in some situations, and ones relevant to gamers at that, that this boost in eDRAM can help computation -- without even considering the compute potential of a better secondary GPU. One argument is that cutting the extra die room gives Intel more margins, which is almost definitely true, but I wonder how much attention Kaby Lake will get. Especially with AVX-512 and other features being debatably removed, it almost feels like Intel is treating this Tock like a Tick, since they didn't really get one with Broadwell, and Kaby Lake will be the architecture that will lead us to 10nm. On the other hand, each of these architectures are developed by independent teams, so I might be wrong in comparing them serially.
Subject: Processors | July 31, 2015 - 03:37 PM | Jeremy Hellstrom
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:
- Intel Core i7 5775C Review @ OCC
- Intel Core i7 5775C: Once Going, This Broadwell CPU Is Great On Linux @ Phoronix
- Intel "Broadwell" Core i7 5775C Review @HiTech Legion
- Comparing The Power/Performance Of A NetBurst Celeron & Pentium 4 To Broadwell's Core i7 5775C @ Phoronix
Tick Tock Tick Tock Tick Tock Tock
A few websites have been re-reporting on a leak from BenchLife.info about Kaby Lake, which is supposedly a second 14nm redesign (“Tock”) to be injected between Skylake and Cannonlake.
UPDATE (July 2nd, 3:20pm ET): It has been pointed out that many hoaxes have come out of the same source, and that I should be more clear in my disclaimer. This is an unconfirmed, relatively easy to fake leak that does not have a second, independent source. I reported on it because (apart from being interesting enough) some details were listed on the images, but not highlighted in the leak, such as "GT0" and a lack of Iris Pro on -K. That suggests that the leaker got the images from somewhere, but didn't notice those details, which implies that the original source was hoaxed by an anonymous source, who only seeded the hoax to a single media outlet, or that it was an actual leak.
Either way, enjoy my analysis but realize that this is a single, unconfirmed source who allegedly published hoaxes in the past.
Image Credit: BenchLife.info
If true, this would be a major shift in both Intel's current roadmap as well as how they justify their research strategies. It also includes a rough stack of product categories, from 4.5W up to 91W TDPs, including their planned integrated graphics configurations. This leads to a pair of interesting stories:
How Kaby Lake could affect Intel's processors going forward. Since 2006, Intel has only budgeted a single CPU architecture redesign for any given fabrication process node. Taking two attempts on the 14nm process buys time for 10nm to become viable, but it could also give them more time to build up a better library of circuit elements, allowing them to assemble better processors in the future.
What type of user will be given Iris Pro? Also, will graphics-free options be available in the sub-Enthusiast class? When buying a processor from Intel, the high-end mainstream processors tend to have GT2-class graphics, such as the Intel HD 4600. Enthusiast architectures, such as Haswell-E, cannot be used without discrete graphics -- the extra space is used for more cores, I/O lanes, or other features. As we will discuss later, Broadwell took a step into changing the availability of Iris Pro in the high-end mainstream, but it doesn't seem like Kaby Lake will make any more progress. Also, if I am interpreting the table correctly, Kaby Lake might bring iGPU-less CPUs to LGA 1151.
Keeping Your Core Regular
To the first point, Intel has been on a steady tick-tock cycle since the Pentium 4 architecture reached the 65nm process node, which was a “tick”. The “tock” came from the Conroe/Merom architecture that was branded “Core 2”. This new architecture was a severe departure from the high clock, relatively low IPC design that Netburst was built around, which instantaneously changed the processor landscape from a dominant AMD to an Intel runaway lead.
After 65nm and Core 2 started the cycle, every new architecture alternated between shrinking the existing architecture to smaller transistors (tick) and creating a new design on the same fabrication process (tock). Even though Intel has been steadily increasing their R&D budget over time, which is now in the range of $10 to $12 billion USD each year, creating smaller, more intricate designs with new process nodes has been getting harder. For comparison, AMD's total revenue (not just profits) for 2014 was $5.51 billion USD.
Subject: Processors | March 4, 2015 - 09:07 PM | Ryan Shrout
Tagged: GDC, gdc 15, Intel, Broadwell, iris pro, LGA1150, core i7
Consumer have been asking for it since the first time Intel announced it, but Iris Pro graphics is finally finding its way to the desktop, socketed market. Shown powering one of Dell's new 5K displays, this processor shipping in "mid-2015", is going to be configured with a 65 watt TDP and will be unlocked for overclockers to tweak. Intel first disclosed these plans way back in May of 2014 so we are going to be approaching the 12-month mark for availability.
It doesn't look special, but this system has the first desktop Iris Pro processor
In a new disclosure at GDC, Intel showed the first 5th Generation Core LGA-socketed CPU with Intel® Iris™ Pro graphics. This 65 watt unlocked desktop processor, available mid-2015, will bring new levels of performance and power efficiency to Mini PCs and desktop All-In-Ones. Since 2006 the 3D performance of Intel Graphics has increased nearly 100 fold (Intel 3DMark06 measurements) and powerful form factors from Acer, Medion and Intel’s own NUCs are becoming available with 5th Generation Intel Core processors with Intel Iris Graphics.
Under that little heatsink...
Details of this new CPU offering, including clock speed and graphics performance, are still unknown but Intel claims we will have this part in our hands in the near future. This isn't targeted to overtake consumers with mid-range discrete graphics systems but instead will bring users interested in a SFF or low power system with both home theater features and improved gaming capability. Our testing with Iris Pro graphics in notebooks has proven that the gaming performance gains can be substantial, but often the battery life demands have limited implementations from OEMs. With a desktop part, we might actually be able to see the full capability of an integrated GPU with embedded memory.
Subject: Processors | January 18, 2015 - 05:16 PM | Sebastian Peak
Tagged: SoC, rumor, processor, leak, iris pro, Intel, graphics, cpu, carrizo, APU, amd
A new report of leaked benchmarks paints a very interesting picture of the upcoming AMD Carrizo mobile APU.
Image credit: SiSoftware
Announced as strictly mobile parts, Carrizo is based on the next generation Excavator core and features what AMD is calling one of their biggest ever jumps in efficiency. Now alleged leaked benchmarks are showing significant performance gains as well, with numbers that should elevate the IGP dominance of AMD's APUs.
Image credit: WCCFtech
"The A10 7850K scores around 270 Mpix/s while Intel’s HD5200 Iris Pro scores a more modest 200 Mpix/s. Carriso scores here over 600 Mpix/s which suggests that Carrizo is more than twice as fast as Kaveri and three times faster than Iris Pro. To put this into perspective this is what an R7 265 graphics card scores, a card that offers the same graphics performance inside the Playstation 4."
While the idea of desktop APUs with greatly improved graphics and higher efficency is tantalizing, AMD has made it clear that these will be mobile-only parts at launch. When asked by Anandtech, AMD had this to say about the possibility of a desktop variant:
“With regards to your specific question, we expect Carrizo will be seen in BGA form factor desktops designs from our OEM partners. The Carrizo project was focused on thermally constrained form factors, which is where you'll see the big differences in performance and other experiences that consumers value.”
The new mobile APU will be manufactured with the same 28nm process as Kaveri, with power consumption up to 35W for the Carrizo down to a maximum of 15W for the ultra-mobile Carrizo-L parts.
Subject: General Tech, Graphics Cards, Processors | September 6, 2014 - 05:25 PM | Scott Michaud
Tagged: iris pro, iris, intel hd graphics, Intel
I was originally intending to test this with benchmarks but, after a little while, I realized that Ivy Bridge was not supported. This graphics driver starts and ends with Haswell. While I cannot verify their claims, Intel advertises up to 30% more performance in some OpenCL tasks and a 10% increase in games like Batman: Arkham City and Sleeping Dogs. They even claim double performance out of League of Legends at 1366x768.
Intel is giving gamers a "free lunch".
The driver also tunes Conservative Morphological Anti-Aliasing (CMAA). They claim it looks better than MLAA and FXAA, "without performance impact" (their whitepaper from March showed a ~1-to-1.5 millisecond cost on Intel HD 5000). Intel recommends disabling it after exiting games to prevent it from blurring other applications, and they automatically disable it in Windows, Internet Explorer, Chrome, Firefox, and Windows 8.1 Photo.
Adaptive Rendering Control was also added in this driver. This limits redrawing identical frames by comparing the ones it does draw with previously drawn ones, and adjusts the frame rate accordingly. This is most useful for games like Angry Birds, Minesweeper, and Bejeweled LIVE. It is disabled when not on battery power, or when the driver is set to "Maximum Performance".
Subject: General Tech, Graphics Cards, Mobile | May 22, 2014 - 04:58 PM | Scott Michaud
Tagged: tegra k1, nvidia, iris pro, iris, Intel, hd 4000
The Chinese tech site, Evolife, acquired a few benchmarks for the Tegra K1. We do not know exactly where they got the system from, but we know that it has 4GB of RAM and 12 GB of storage. Of course, this is the version with four ARM Cortex-A15 cores (not the upcoming, 64-bit version based on Project Denver). On 3DMark Ice Storm Unlimited, it was capable of 25737 points, full system.
Image Credit: Evolife.cn
You might remember that our tests with an Intel Core i5-3317U (Ivy Bridge), back in September, achieved a score of 25630 on 3DMark Ice Storm. Of course, that was using the built-in Intel HD 4000 graphics, not a discrete solution, but it still kept up for gaming. This makes sense, though. Intel HD 4000 (GT2) graphics has a theoretical performance of 332.8 GFLOPs, while the Tegra K1 is rated at 364.8 GFLOPs. Earlier, we said that its theoretical performance is roughly on par with the GeForce 9600 GT, although the Tegra K1 supports newer APIs.
Of course, Intel has released better solutions with Haswell. Benchmarks show that Iris Pro is able to play Battlefield 4 on High settings, at 720p, with about 30FPS. The HD 4000 only gets about 12 FPS with the same configuration (and ~30 FPS on Low). This is not to compare Intel to NVIDIA's mobile part, but rather compare Tegra K1 to modern, mainstream laptops and desktops. It is getting fairly close, especially with the first wave of K1 tablets entering at the mid-$200 USD MSRP in China.
As a final note...
There was a time where Tim Sweeney, CEO of Epic Games, said that the difference between high-end and low-end PCs "is something like 100x". Scaling a single game between the two performance tiers would be next-to impossible. He noted that ten years earlier, that factor was more "10x".
Now, an original GeForce Titan is about 12x faster than the Tegra K1 and they support the same feature set. In other words, it is easier to develop a game for the PC and high-end tablet than it was to develop an PC game for high-end and low-end machines, back in 2008. PC Gaming is, once again, getting healthier.
Subject: General Tech, Graphics Cards, Processors, Shows and Expos | April 8, 2014 - 03:43 PM | Scott Michaud
Tagged: Intel, NAB, NAB 14, iris pro, Adobe, premiere pro, Adobe CC
When Adobe started to GPU-accelerate their applications beyond OpenGL, it started with NVIDIA and its CUDA platform. After some period of time, they started to integrate OpenCL support and bring AMD into the fold. At first, it was limited to a couple of Apple laptops but has since expanded to include several GPUs on both OSX and Windows. Since then, Adobe switched to a subscription-based release system and has published updates on a more rapid schedule. The next update of Adobe Premiere Pro CC will bring OpenCL to Intel Iris Pro iGPUs.
Of course, they specifically mentioned Adobe Premiere Pro CC which suggests that Photoshop CC users might be coming later. The press release does suggest that the update will affect both Mac and Windows versions of Adobe Premiere Pro CC, however, so at least platforms will not be divided. Well, that is, if you find a Windows machine with Iris Pro graphics. They do exist...
A release date has not been announced for this software upgrade.
Subject: Processors | March 19, 2014 - 08:00 PM | Ryan Shrout
Tagged: LGA, iris pro, Intel, gdc 14, GDC, Broadwell
We have great news for you this evening! The demise of the LGA processor socket for Intel desktop users has been great exaggerated. During a press session at GDC we learned that not only will Intel be offering LGA based processors for Broadwell upon its release (which we did not get more details on) but that there will be an unlocked SKU with Iris Pro graphics implemented.
Iris Pro, in its current version, is a high performance version of Intel's processor graphics that includes 128MB of embedded DRAM (eDRAM). When we first heard that Iris Pro was not coming to the desktop market with an LGA1150 SKU we were confused and bitter but it seems that Intel was listening to feedback. Broadwell will bring with it the first socketed version of Iris Pro graphics!
It's also nice to know that the rumors surrounding Intel's removal of the socket option for DIY builders was incorrect or possibly diverted due to the reaction. The enthusiast lives on!!
UPDATE: Intel has just confirmed that the upcoming socketed Broadwell CPUs will be compatible with 9-series motherboards that will be released later this spring. This should offer a nice upgrade path for users going into 2015.