Quick 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.

CyberLink Media Espresso 6.5 - Harry Potter 8 Transcode

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.

Compute Performance Pricing
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  • virgult - Saturday, August 31, 2013 - link

    Nvidia Kepler plays Crysis 3 well but it sucks insanely hard at computing and rendering. Reply
  • Eric S - Wednesday, July 3, 2013 - link

    It appears to do compute better then graphics (and ECC memory is a plus for compute). That is exactly what pros will be looking for. Apple doesn't cater to the gaming market with these machines even if they should play most games fine. A dedicated gaming machine would be built much different then this. Reply
  • jasonelmore - Sunday, June 2, 2013 - link

    This, I dont know about anyone else, but i'm not dropping 2 grand or $2700 with upgrades on a 15 incher that does not have dedicated graphics.

    Another problem i see is the 13" Retina only uses duals, and if they did use this quad with GT3e silicon, then the price of of the 13" will go up at least $150 since the i7's and i5's the 13" currently use, are sub $300 parts.

    The only solution i see is Apple offering it as a build to order/max upgrade option, and even then they risk segmentation across the product line.
    Reply
  • fteoath64 - Monday, June 3, 2013 - link

    "can't sell a $2000 laptop without a dedicated GFX". Absolutely true, especially when the GT3e is still a little slower than the 650M. So the 750M tweaked a few mhz higher will do nicely for the rMBP. The 13 incher will get a boost with the GT3e CPU. So a slight upgrade to lower power cpu maybe worthwhile to some. Improvement to 1080p eyesight camera would be a given for the new rMBP. Reply
  • Eric S - Wednesday, July 3, 2013 - link

    You can drop discrete graphics when that $2000+ laptop is using builtin graphics with the same price premium and number of transistors of the discrete chip. I'm almost positive the discrete will go away. I have a feeling that Apple had a say in optimizations and stressed OpenCL performance. That is probably what they will highlight when they announce a new MacBook Pro. Reply
  • xtc-604 - Saturday, June 8, 2013 - link

    I really hope that Apple continues to treat the rMBP 15 as a flagship. Giving it iGPU only would be a deal breaker for many professionals. Atleast in haswell's current form. Until Intel can make an IGPU that atleast matches or exceeds performance at high resolutions, it is still a no go for me. Reply
  • Eric S - Wednesday, July 3, 2013 - link

    Why is that a deal breaker? The Iris 5200 is better then a discrete chip for compute (OpenCL). If you are doing 3D rendering, video editing, photoshop, bioinformatics, etc. that is what you should care about. It also has ECC memory unlike a discrete chip so you know your output is correct. How fast it can texture triangles is less important. It still has plenty of power in that area for any pro app. This is not designed to be a gaming machine. Not sure why anyone would be surprised it may not be optimized for that. Reply
  • Eric S - Monday, July 1, 2013 - link

    You never know, but I doubt it. They will have trouble with the ports on the side if they make it smaller. I think it is more likely the space saving will go to additional battery. They may be able to get similar battery life increases to the Air with the extra space. Reply
  • mikeztm - Tuesday, June 4, 2013 - link

    Notice that the 13" 2012 rMBP is a little thicker than the 15" version. Quad core in 13 inch may be planned at the very beginning. Reply
  • axien86 - Saturday, June 1, 2013 - link


    Look at the overheating issues that come with i5/i7 Razer notebooks and finding the same heating noticed in their Haswell notebook press event several days ago.

    If Apple decides to use these Haswells which put out heat in a concentrated area and in very thin outlines, you are essentially computing over a mini-bake oven.
    Reply

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