Fresh Arch Linux Benchmarks Of AMDGPU & AMDGPU-PRO
Written by Niccolo Belli in Radeon on 28 December 2016 at 07:19 PM EST. 13 Comments
Phoronix reader "Darkbasic" who many of you know from the forums and some of his past benchmarks has shared with us his latest numbers when testing the open-source AMDGPU+RadeonSI stack on Arch Linux as well as when using the AMDGPU-PRO hybrid driver. Enjoy!

I used latest Arch testing + lcarlier repository. I had to downgrade xorg-server to 1.18 to be able to use amdgpu-pro, otherwise I used 1.19 with the FOSS stack.


The first one is a benchmark of an RX 470 using the FOSS driver and amdgpu-pro (which I tested with mainline kernel 4.10, amd-staging-4.7 -the DAL branch-, mainline 4.7 and 4.7 + the proprietary amdgpu-pro DKMS). amdgpu-pro didn't work very well with kernel 4.10, but both amd-staging-4.7 and mainline 4.7 were as fast as the proprietary DKMS. Unfortunately only with the proprietary DKMS the amdgpu-pro driver was able to run Deus Ex Mankind Divided.


The second one is a benchmark of an HD 7950 using the radeon kernel driver, the new amdgpu kernel driver and amdgpu-pro with the proprietary dkms on top of kernel 4.7. Dota2 didn't run with pro+dkms, so I used pro+staging-4.7 instead. From my previous tests amd-staging-4.7 was as fast as the proprietary dkms with amdgpu-pro.


The third one is a test about cpu limiting. I wanted to know how cpu limited were your previous tests in the 31-Way NVIDIA GeForce / AMD Radeon Linux OpenGL Comparison. So I heavily overclocked the fastest CPU available for gaming and I benchmarked against your results. I did it for both the RX 470 and the HD 7950 (for which I used the radeon driver, since that's what you used). The results are very interesting: in the vast majority of tests my cards were *WAY* faster, but in the most demanding ones your RX 470 was a bit faster, probably because it's factory overclocked. This test clearly shows which benchmarks are cpu limited and which ones aren't.


In the last test I wanted to know how helpful would have been Vulkan (radvd in my case) with such a powerful CPU. So I tested both dota 2 and the talos principle at 1080p and 4K (both opengl and vulkan). Interestingly even at 4K talos principle with Radvd is faster than OpenGL! If I recall correctly in your previous tests it wasn't faster than opengl at 4K: did radvd improve in the meantime or did the faster cpu help radvd more than opengl?

More of his past benchmark results can be found on his personal blog at
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