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A Preliminary Look At Radeon RX 6800 XT Windows Performance vs. Open-Source Linux Drivers

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  • A Preliminary Look At Radeon RX 6800 XT Windows Performance vs. Open-Source Linux Drivers

    Phoronix: A Preliminary Look At Radeon RX 6800 XT Windows Performance vs. Open-Source Linux Drivers

    For those wondering how the open-source Radeon Linux graphics drivers compare to the Radeon Software Windows drivers for the recently released Radeon RX 6800 XT, here are some preliminary data points looking at the OpenGL / Vulkan performance between Windows and Linux for RDNA 2.

    http://www.phoronix.com/vr.php?view=29768

  • #2
    I'm kinda surprised by this. Compared to Windows, the results aren't all that bad, but the Windows results weren't very good for OpenGL or compute so it is a little concerning. But, there are more driver updates coming up and at least these GPUs are actually usable so early on, so I'm feeling hopeful.

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    • #3
      For open source benchmarks on Linux for a GPU I am fairly impressed. The card hasn't been out long either.

      It's clear that there must be areas of improvement for the Linux drivers where Windows performs a lot better, but maybe they utilise methods or licensed code that AMD can't put into the open source drivers, or it's simply driver architecture differences.

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      • #4
        Originally posted by dirlewanger88
        Why not do this with a proper distro, instead of Ubuntu?
        Because Ubuntu is the Windows 10 of distros.

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        • #5
          Originally posted by sykobee View Post
          For open source benchmarks on Linux for a GPU I am fairly impressed. The card hasn't been out long either.

          It's clear that there must be areas of improvement for the Linux drivers where Windows performs a lot better, but maybe they utilise methods or licensed code that AMD can't put into the open source drivers, or it's simply driver architecture differences.
          As far as Vulkan goes, I suspect ACO needs to get tuned for RDNA2 yet and then I fully expect it to kick ass. As for OpenGL, AMD's proprietary OpenGL driver seriously sucks ass, I doubt their open source compiler has been really tuned for RDNA2 just yet either, but it still rocked their proprietary driver. And as for OpenCL, I don't like ROCm, I think it needs to be seriously re-thought, We need people to contribute to Clover right away, it's waaaay past due for Clover to become full featured, it must happen.

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          • #6
            Thanks for including the dx11-results whenever applicable. Some people might read things out of context whenever those benchmarks are omitted.

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            • #7
              The Linux vs windows on nvidia's blob whould also be interesting. It might even prove that the nvidia driver is optimized for windows while it is crapware on linux.

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              • #8
                One has to keep in mind that Unigine Heaven and Valley opengl and directx11 backend might be different. For example I have noticed with apitrace that the heaviest shader in directx 9 is replaced by two shaders (and the texture formats changed as well) in the opengl backend. There might be similar things for directx 11 vs opengl.

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                • #9
                  Some years ago, having such comparable results for Mesa drivers for a high-end card was a pipedream. Let alone for a card that was just released.

                  Thanks to the community, and thanks to AMD. This is beautiful.

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                  • #10
                    AMD supports Windows better than Linux!
                    In fact, they have the fastest DirectX driver on Earth... (come on, why not port DirectX 10-12 to native Linux?)
                    Even they forgot about Vulkan in the card's info page!

                    .....except that:

                    Windows: faster
                    Windows in actual use: the slowest thing ever made

                    Linux: slower
                    Linux in actual user: blazing fast

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