Intel Iris Pro 5200 Graphics Review: Core i7-4950HQ Tested
by Anand Lal Shimpi on June 1, 2013 10:01 AM ESTSleeping Dogs
A Square Enix game, Sleeping Dogs is one of the few open world games to be released with any kind of benchmark, giving us a unique opportunity to benchmark an open world game. Like most console ports, Sleeping Dogs’ base assets are not extremely demanding, but it makes up for it with its interesting anti-aliasing implementation, a mix of FXAA and SSAA that at its highest settings does an impeccable job of removing jaggies. However by effectively rendering the game world multiple times over, it can also require a very powerful video card to drive these high AA modes.
At 1366 x 768 with medium quality settings, there doesn't appear to be much of a memory bandwidth limitation here at all. Vsync was disabled but there's a definite clustering of performance close to 60 fps. The gap between the 650M and Iris Pro is just under 7%. Compared to the 77W HD 4000 Iris Pro is good for almost a 60% increase in performance. The same goes for the mobile Trinity comparison.
At higher resolution/higher quality settings, there's a much larger gap between the 650M and Iris Pro 5200. At high quality defaults both FXAA and SSAA are enabled, which given Iris Pro's inferior texture sampling and pixel throughput results in a much larger victory for the 650M. NVIDIA maintains a 30 - 50% performance advantage here. The move from a 47W TDP to 55W gives Iris Pro an 8% performance uplift. If we look at the GT 640's performance relative to the 5200, it's clear that memory bandwidth alone isn't responsible for the performance delta here (although it does play a role).
Once more, compared to all other integrated solutions Iris Pro has no equal. At roughly 2x the performance of a 77W HD 4000, 20% better than a desktop Trinity and 40% better than mobile Trinity, Iris Pro looks very good.
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tipoo - Saturday, June 1, 2013 - link
It still seems to me that this misses where it would benefit most: 13 inch laptops, which currently mostly use dual core processors. GT3e would make something like the Retina MBP 13" much more appealing for instance, but it's paired with processors such that the wattage would be too high.tipoo - Saturday, June 1, 2013 - link
Oh and I wanted to ask, if the integrated graphics are disabled can the CPU still tap into the eDRAM?Ryan Smith - Saturday, June 1, 2013 - link
Yes, it's a dedicated cache for both the CPU and the GPU. However it's very unlikely you're going to run into any scenario that uses a Crystalwell-equipped part in such a manner. It's not being sold in socket form, so it will go to OEMs, who in turn would only use it if they didn't include a dGPU.jeffkibuule - Saturday, June 1, 2013 - link
So pretty much, unless you've got some huge beefy GPU that would absolutely suck up power compared to just using Iris Pro graphics, no one would opt for that SKU?shiznit - Saturday, June 1, 2013 - link
Right on. A dual core model for the 13" rMPB would have me selling my 2012 immediately. Now I need to decide if I can live with the 15" or even bother.moep - Saturday, June 1, 2013 - link
If i interpreted the results of this article correctly, I suspect that the 15" MBP is probably going to get a new and even thinner form factor with this refresh. (one chip less, fewer VRM related parts, lower combined TDP)A 15" rMBP approaching the weight of a 15" Macbook Air would be very interesting, although a part of me hoped that Apple would wait until Broadwell to ditch the dGPU in the 15".
Such a step back in GPU performance with the Retina display is surely not going to be very pleasant in 3D applications.
Galatian - Saturday, June 1, 2013 - link
I actually hope/suspect, that Apple will go the other road: use a discrete graphic solution on the 15" rMBP until Broadwell comes out, but have a cTDPdown version of the 4850HQ on the 13" rMBP. Maybe they can even get the normal TDP version in there; after all it has the same (good) cooling the 15" rMBP has and I have never heard the fans on mine. I think Apple really designed it with Haswell in mind, so let's see what they'll bring on during the next few weeks.tipoo - Saturday, June 1, 2013 - link
That's certainly the best case, I really hope they go down that road. The rMBP as a quad with Iris Pro would really make it worth the Pro name.vFunct - Sunday, June 2, 2013 - link
They'll probably stick with the built in GPU for the 13" model and a discrete GPU for the 15" model, which is what they do right now.Apple's top-end MacBook Pro has always had the highest end discrete GPU available.
Spunjji - Tuesday, June 4, 2013 - link
I'm guessing you mean "for a given power usage", as there are definitely faster GPUs out there than the 650M.