Synthetics

Our synthetic benchmarks can sometimes tell us a lot about what an architecture is capable of. In this case, we do have some unanswered questions about why Intel falls short of the GT 650M in some cases but not in others. We'll turn to 3DMark Vantage first to stress ROP and texel rates.

Synthetic: 3DMark Vantage Pixel Fill

Iris Pro doesn't appear to have a ROP problem, at least not in 3DMark Vantage. NVIDIA can output more pixels than Iris Pro though, so it's entirely possible that we're just not seeing any problems because we're looking at a synthetic test. Comparing the HD 4600 to the Iris Pro 5200 we see near perfect scaling in pixel throughput. Remember the ROP hardware is located in slice common, which is doubled when going from GT2 to GT3. Here we see a near doubling of pixel fillrate as a result.

Moving on, we have our 3DMark Vantage texture fillrate test, which does for texels and texture mapping units what the previous test does for ROPs.

Synthetic: 3DMark Vantage Texel Fill

Now this is quite interesting. NVIDIA has a 50% advantage in texturing performance, that's actually higher than what the raw numbers would indicate. It's entirely possible that this is part of what we're seeing manifest itself in some of the game benchmarks.

Finally we’ll take a quick look at tessellation performance with TessMark.

Synthetic: TessMark, Image Set 4, 64x Tessellation

Iris Pro doesn't appear to have a geometry problem. Tessellation performance is very good.

Image Quality 3DMarks & GFXBenchmark
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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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.

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