Intel Iris Pro 5200 Graphics Review: Core i7-4950HQ Tested
by Anand Lal Shimpi on June 1, 2013 10:01 AM ESTQuick Sync Performance
The 128MB eDRAM has a substantial impact on QuickSync performance. At a much lower TDP/clock speed, the i7-4950HQ is able to pretty much equal the performance of the i7-4770K. Running Haswell's new better quality transcode mode, the 4950HQ is actually 30% faster than the fastest desktop Haswell. This is just one of many reasons that we need Crystalwell on a K-series socketed desktop part.
CPU Performance
I spent most of the week wrestling with Iris Pro and gaming comparisons, but I did get a chance to run some comparison numbers between the i7-4950HQ CRB and the 15-inch MacBook Pro with Retina Display running Windows 8 in Boot Camp. In this case the 15-inch rMBP was running a 2.6GHz Core i7-3720QM with 3.6GHz max turbo. Other than the base clock (the i7-4950HQ features a 2.4GHz base clock), the two parts are very comparable as they have the same max turbo frequencies. I paid attention to turbo speeds while running all of the benchmarks and for the most part found the two systems were running at the same frequencies, for the same duration.
To put the results in perspective I threw in i7-3770K vs. i7-4770K results. The theory is that whatever gains the 4770K shows over the 3770K should be mirrored in the i7-4950HQ vs. i7-3720QM comparison. Any situations where the 4950HQ exceeds the 4770K's margin of victory over Ivy Bridge are likely due to the large 128MB L4 cache.
| Peak Theoretical GPU Performance | |||||||||||||||||||||
| Cinebench 11.5 (ST) | Cinebench 11.5 (MT) | POV-Ray 3.7RC7 (ST) | POV-Ray 3.7RC7 (MT) | 7-Zip Benchmark | 7-Zip Benchmark (Small) | x264 HD - 1st Pass | x264 HD - 2nd Pass | ||||||||||||||
| Intel Core i7-4770K | 1.78 | 8.07 | - | 1541.3 | 23101 | - | 79.1 | 16.5 | |||||||||||||
| Intel Core i7-3770K | 1.66 | 7.61 | - | 1363.6 | 22810 | - | 74.8 | 14.6 | |||||||||||||
| Haswell Advantage | 7.2% | 6.0% | - | 13.0% | 1.3% | - | 5.7% | 13.0% | |||||||||||||
| Intel Core i7-4950HQ | 1.61 | 7.38 | 271.7 | 1340.9 | 21022 | 14360 | 73.9 | 14.0 | |||||||||||||
| Intel Core i7-3720QM | 1.49 | 6.39 | 339.1 | 1178.3 | 19749 | 12670 | 66.2 | 12.9 | |||||||||||||
| Haswell Advantage | 8.1% | 15.5% | 24.8% | 13.8% | 6.4% | 13.3% | 11.6% | 8.5% | |||||||||||||
| Crystalwell Advantage | 0.9% | 9.5% | - | 0.8% | 5.1% | - | 5.9% | -4.5% | |||||||||||||
I didn't have a ton of time to go hunting for performance gains, but a couple of these numbers looked promising. Intel claims that with the right workload, you could see huge double digit gains. After I get back from Computex I plan on poking around a bit more to see if I can find exactly what those workloads might be.
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Phrontis - Wednesday, June 5, 2013 - link
I can't wait for one on these on a mITX board such with 3 decent monitor outputs. Theres enough power for the sort of things I do if not for gaming.Phrontis
khanov - Friday, June 7, 2013 - link
Without a direct comparison between HD 5000/5100 and Iris Pro 5200 with Crystalwell,how can we conclude that Crystalwell has any effect in any of the game benchmarks? While it clearly is of benefit in some compute tasks, in the game benchmarks you only compare to HD 4600 with half as many EU's and to Nvidia and AMD with their different architectures.
We really need to see Iris Pro 5200 vs HD5100 to get an apples to apples comparison and be able to determine if Crystalwell is worth the extra money.
MODEL3 - Sunday, June 9, 2013 - link
Haswell ULT GT3 (Dual-Core+GT3) = 181mm2 and 40 EU Haswell GPU is 174mm^2.7mm^2 for everything else except GT3?
n13L5 - Tuesday, June 11, 2013 - link
" An Ultrabook SKU with Crystalwell would make a ton of sense, but given where Ultrabooks are headed (price-wise) I’m not sure Intel could get any takers."They sure seem to be going up in price, rather than down at the moment...
anandfan86 - Tuesday, June 18, 2013 - link
Intel has once again made their naming so confusing that even their own marketing weasels can't get it right. Notice that the Intel slide titled "4th Gen Intel Core Processors H-Processors Line" calls the graphics in the i7-4950HQ and i7-4850HQ "Intel HD Graphics 5200" instead of the correct name which is "Intel Iris Pro Graphics 5200". This slide calls the graphics in the i7-4750HQ "Intel Iris Pro Graphics 5200" which indicates that the slide was made after the creation of that name. It is little wonder that most media outlets are acting as if the biggest tech news of the month is the new pastel color scheme in iOS 7.Myoozak - Wednesday, June 26, 2013 - link
The peak theoretical GPU performance calculations shown are wrong for Intel's GFLOPS numbers. Correct numbers are half of what is shown. The reason is that Intel's execution units are made of of an integer vec4 processor and a floating-point vec4 processor. This article correctly states it has a 2xvec4 SIMD, but does not point out that half is integer and half is floating-point. For a GFLOPS computation, one should only include the floating-point operations, which means only half of that execution unit's silicon is getting used. The reported computation performance would only be correct if you had an algorithm with a perfect mix of integer & float math that could be co-issued. To compare apples to apples, you need to stick to GFLOPS numbers, and divide all the Intel numbers in the table by 2. For example, peak FP ops on the Intel HD4000 would be 8, not 16. Compared this way, Intel is not stomping all over AMD & nVidia for compute performance, but it does appear they are catching up.alexcyn - Tuesday, August 6, 2013 - link
I heard that Intel 22nm process equals TSMS 26nm, so the difference is not that much.alexcyn - Tuesday, August 6, 2013 - link
I heard that Intel 22nm process equals TSMC 26nm, so the difference is not that big.Doughboy(^_^) - Friday, August 9, 2013 - link
I think Intel could push their yield way up by offering 32MB and 64MB versions of Crystalwell for i3 and i5 processors. They could charge the same markup for the 128, but sell the 32/64 for cheaper. It would cost Intel less and probably let them take even further market share from low-end dGPUs.krr711 - Monday, February 10, 2014 - link
It is funny how a non-PC company changed the course of Intel forever for the good. I hope that Intel is wise enough to use this to spring-board the PC industry to a new, grand future. No more tick-tock nonsense arranged around sucking as many dollars out of the customer as possible, but give the world the processing power it craves and needs to solve the problems of tomorrow. Let this be your heritage and your profits will grow to unforeseen heights. Surprise us!