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Could the transfer speed over PCIE to the video card be the limiting factor then?. It would make sense why the M1 GPU bench very high as well as it likely has 2
by _kbh_ 5y ago
Could the transfer speed over PCIE to the video card be the limiting factor then?. It would make sense why the M1 GPU bench very high as well as it likely has 200GB/s read to the shared memory compared to the ~32GB/s given by a PCIE4.0 16x slot.
- terafo 5y agoMac Pro with w6900x uses PCIe gen 3, which is 2x worse than gen 4. And given other results in that thread, I think it's unlikely to be the bottleneck. If it was, people with ryzen CPUs and 30 series cards would have much higher performance than they have on practice.
- _kbh_ 5y agoThat is true, perhaps its a difference in drivers and operating systems?. it hard to tell if the benchmark is bad without having the same setup to test against because anything could impact it really.