Intel Iris Pro 5200 Graphics Review: Core i7-4950HQ Tested
by Anand Lal Shimpi on June 1, 2013 10:01 AM ESTSynthetics
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.
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.
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.
Iris Pro doesn't appear to have a geometry problem. Tessellation performance is very good.
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whyso - Saturday, June 1, 2013 - link
They are completely different systems making power consumption values irrelevant.codedivine - Saturday, June 1, 2013 - link
Hi folks. Can you post the OpenCL extensions supported? You can use something like "GPU Caps viewer" from Geeks3d.tipoo - Saturday, June 1, 2013 - link
Interesting that the compute is punches above it's game performance weight. I wonder if they could put more EUs in a chip, maybe a larger eDRAM, and put it on a board as a compute card.lmcd - Saturday, June 1, 2013 - link
They already have a compute card called Xeon Phi if I remember correctly.Klimax - Sunday, June 2, 2013 - link
Different Arch (X86 in Phi)tipoo - Sunday, June 2, 2013 - link
I'm aware, but the Xeon Phi requires completely different programming than a GPU like this which can just use OpenCL.Soul_Master - Saturday, June 1, 2013 - link
What's your point for comparing desktop GPU with middle-range mobile GPU? CPU on both devices are not equal.Soul_Master - Saturday, June 1, 2013 - link
Sorry. I misunderstood about i7 4950HQ process, a high-end quad-core processor for laptops.Ryan Smith - Sunday, June 2, 2013 - link
It's what we had available. We wanted to test a DDR3 version of GK107, and that's what was on-hand.tipoo - Saturday, June 1, 2013 - link
Hmm, so it's heavily hinted at that the next rMBP will ditch discreet graphics. The 5200 is good, but that would still be a regression in performance. Not the first time Apple would have done that, there was the Radeon cut out of the Mini, the 320M to the 3000, even the bottom rung of the newest iMac with the 640m. I wonder if it would at least be cheaper to make up for it.