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Apple's M1 chip - huge GPU gain over Iris graphics

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#121 Camper-Hunter

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Posted 22 May 2021 - 01:30 AM

View PostHomy, on 21 May 2021 - 11:24 AM, said:

32-core M2 GPU doing 60 fps at 1440p Ultra in Borderlands 3 (via Rosetta 2) will be on par with Radeon 5700 XT, RTX 2070 Super, 2080 or 1080 Ti.

That sounds a bit too good to be true that an iGPU would equal a 2 years old, $500 (at the time), 200 W GPU like the 2070 Super. I'll believe it when I see it. :huh:

#122 Homy

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Posted 22 May 2021 - 11:03 AM

View Postjeannot, on 21 May 2021 - 11:46 PM, said:

Games can use multiple CPU cores, but only to some extent. There's been some tests to specifically assess how core number affects gaming performance. And beyond 4-6 cores or so, the benefit was negligible.
OTOH, I do believe that Metro is limited by GPU perf on the M1, especially at 1440p and higher.
It'd be great if developers released an ARM native version of the game, but I'm not to hopefully. It seems they just took the opportunity of the Stadia/Vulkan version to release a MotlenVK version for the Mac. I wouldn't expect more.

True about CPUs but as you can see I was only talking about GPUs. Since my reference point is the current M1 I don't even take into account that M2 will have faster CPU and since GPUs do parallel computing you can multiply the performance with the number of additional cores. Actually modern games can use more than 6 CPU cores. Many games can use 8 cores or even more but beyond 8 cores there is little benefit: [media]https://youtu.be/vVjdhXAdKE0[/media]

View PostCamper-Hunter, on 22 May 2021 - 01:30 AM, said:

That sounds a bit too good to be true that an iGPU would equal a 2 years old, $500 (at the time), 200 W GPU like the 2070 Super. I'll believe it when I see it. :huh:

I know but look how Apple surprised us with M1. We know that M1 with 8-core GPU at 10W can perform as good as other GPUs with much higher TDP. So a M2 with 32-core GPU at 40W could perform as the 2070 Super at 200W. I used the benchmarks in the videos below where M1 gets 22 fps at 1080p ultra in BL3 built-in benchmark and about 30 in game play. M2 32-core GPU would manage around 60 at 1440p Ultra while 2070 Super manages 56-66 at the same settings. I don't even take into account that M2 may have faster CPU or higher clocked GPU and LPDDR5 or other new benefits. It will be very exiting to see what Apple can come up with. :)

[media]https://youtu.be/Cu8gEq-Os_E[/media]
[media]https://youtu.be/znE6vzEa0NU[/media]