So I’m getting a 6650XT I read that it does run ray tracing but I’m seeing a lot of different results as to if AMD ray tracing is supported on Kubuntu 23.04, or even Linux in general. Anyone have experience with this card?

  • -Amble-@alien.topB
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    10 months ago

    RDNA2 is inherently quite slow at ray tracing even on Windows, and on Linux the current state of RADV leaves it performing 30-50% slower than Windows. Speaking as a 6600 XT owner who experiments with ray tracing out of curiosity: you won’t actually be able to play any games with ray tracing, it simply doesn’t make any sense unless you like playing at 20 FPS.

    As for support, if your distro has Mesa 23.2 then RT support will be enabled by default, and the performance gap will inevitably improve with more updates. But that GPU is never going to deliver playable RT performance in games.

    • Matt_Shah@alien.topB
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      10 months ago

      Actually a RX 6600 is even faster at RT than a RTX 3050 except in nvidia sponsored games. But below an RX 6700 XT it is not worth the performance hit in my opinion. Also RT is still about 20-25% slower in mesa radv than amd’s windows driver. Maybe the amdgpu-pro and amdvlk are faster at RT, but obth of them don’t seem to be as amture as mesa radv.