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RADV/RadeonSI Benchmarks On Mesa 18.0

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  • artivision
    replied
    Originally posted by IreMinMon View Post

    Sounds logical but if that was the issue wouldn't we have the same kind of framerate ceiling on Windows?
    They do have the same problem on windowz, probably even worse.

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  • IreMinMon
    replied
    Originally posted by artivision View Post

    Nothing to do with Cpu. All Amd GPUs over 6-teraflops have flop to bandwidth ratio problems and the new Tile Renderer didn't solve this. Since all those products use HBM we don't now for sure if this mix is the problem. I don't suggest buying anything more than 6-teraflops from Amd, except if the price is a lot lower than the named flops. That way you invest in the future for half the price and for games that actually need this performance. Regardless of that i suggest undervolting any GCN graphics chip to 1.05v and overclock it to the maximum potential. As for HBM i propose overvolting and overclocking to a 90%, if you do this right for Vega 56 you will beat anything except a 1080ti. In the future you may get more.
    Sounds logical but if that was the issue wouldn't we have the same kind of framerate ceiling on Windows?

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  • artivision
    replied
    Originally posted by GruenSein View Post
    I find it somewhat concerning that a 10.5TFlops part like Vega 56 only performs marginally better than a 7.2TFlops Fury (non X) in most benchmarks. I am wondering if this is due immature drivers or bottle-necks in the fixed function block since compute performance quite good.
    Nothing to do with Cpu. All Amd GPUs over 6-teraflops have flop to bandwidth ratio problems and the new Tile Renderer didn't solve this. Since all those products use HBM we don't now for sure if this mix is the problem. I don't suggest buying anything more than 6-teraflops from Amd, except if the price is a lot lower than the named flops. That way you invest in the future for half the price and for games that actually need this performance. Regardless of that i suggest undervolting any GCN graphics chip to 1.05v and overclock it to the maximum potential. As for HBM i propose overvolting and overclocking to a 90%, if you do this right for Vega 56 you will beat anything except a 1080ti. In the future you may get more.

    Leave a comment:


  • IreMinMon
    replied
    Originally posted by GruenSein View Post
    I find it somewhat concerning that a 10.5TFlops part like Vega 56 only performs marginally better than a 7.2TFlops Fury (non X) in most benchmarks. I am wondering if this is due immature drivers or bottle-necks in the fixed function block since compute performance quite good.
    Exactly what I was thinking

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  • Strunkenbold
    replied
    Nice benchmarks, good to see steady improvement. Just needs a little more Vulkan and Vega boost, although its already impressive.
    BTW, checked Unigine Valley yesterday on SI (HD 7970):
    Win10, dx11: 70fps
    Win10, opengl: 60fps
    Linux, mesa git: 65fps

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  • duby229
    replied
    Good article. It may not be totally thorough, but it certainly has enough data to prove no major regressions.

    (Also I just wanted to mention that AMD's windows drivers are not at all related to mesa. You can't expect that a games behavior on windows will be anything at all like it's behavior in wine on linux. And then there's the issue of ported games, which many of them use middleware layers. So you can't expect the linux binary to behave anything at all like the windows binary. A lot of those middleware layers don't even try at all to emulate the behavior of windows libraries. They try to be 1 to 1 translations.)

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  • Etherman
    replied
    Originally posted by GruenSein View Post

    Agreed. For example, on Windows Wolfenstein 2 is blazingly fast on Vegas now that it got optimized for it. Therefore, it is possible to extract the performance one would expect from these devices. The question is how much effort it requires on the developers part and how specific this is to Vega (it could just be the advancing Vulkan backend of the engine as well). If it requires lots of Vega-specific work I doubt that we will see many game developers putting in the hours...
    The new Wolfenstein seems to run relatively well on rx 580 cards too, so much of it it might be Amd specific optimizations.

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  • fctcris
    replied
    Can you add mpv to your benchmarks? Their vulkan implementation is quite cutting edge and it's trivial to benchmark: https://haasn.xyz/posts/2017-10-05-h...hroughput.html

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  • valici
    replied
    Good news everyone... No regressions.

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  • Michael
    replied
    Originally posted by Flaburgan View Post
    Michael thank you for your work. Would it be possible to see some comparison like this on Intel chipset like the 630?
    Yes I usually do Intel comparison with each Mesa release. At the moment have Coffeelake comparison coming out tomorrow or so it should be done.

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