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A Fresh Look At The NVIDIA vs. Radeon Linux Performance & Perf-Per-Watt For August 2018

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  • #31
    Originally posted by bridgman View Post
    We have been doing that for at least a couple of years AFAIK.
    Cant confirm this.
    Just want to remember this article: https://www.phoronix.com/scan.php?pa...DRM-4.15-Early
    No response from AMD.
    I bisected and created https://bugs.freedesktop.org/show_bug.cgi?id=103100.
    Some months later there was a fix appearing in Mesa.

    Spotted another perf regression here:
    https://bugs.freedesktop.org/show_bug.cgi?id=102429

    And actually there is again a performance regression for some months now in either Mesa, LLVM, the Kernel who knows...
    You already spotted that too?

    BTW, any response from the Vega regressions? https://www.phoronix.com/scan.php?pa...8-amdgpu&num=1

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    • #32
      Originally posted by IreMinMon View Post

      I know I know.
      But for the latest few Mesa releases I haven't seen much improvement for Vega. I can remember a year or so ago reading these articles with Rx480 and RX580, progress seemed much faster. RADV does seem to be doing better progress, but not Radeon.

      And I mean, RX580 seems very competitive, it's just that as soon as you decide to get something more expensive, performance scales up quite badly. It's the one benchmark I want to see on phoronix - Vega 56 / RX580 ratio of performance on both Windows and linux, side by side.

      I can't recommend people to get RX580 for their new PC in mid-2018. Nvidia 20 series is out. And God knows I hate nvidia drivers. But you just have no choice. For all the AMD shilling i've done in the past 6 months, the go-to card for 400€ish consumer all this time was Nvidia 1070ti, even with linux. I probably need a new GPU, but I'll only get one if I can get a good deal on an AMD GPU. Is this time ever going to come?
      I would like to get an AMD card but I can't either - the Nvidia cards are more (power) efficient. Heck, for e.g., the 1070 ti is way more efficient than a RX 580. That's pretty bad, imho. It doesn't matter which OS or drivers you're using, it's the same case across the board. I don't mind if an AMD card trails a bit in performance to a comparable Nvidia but practically all of them are doing it using way more power. They need to address that and they haven't for how many generations now? They caught up with their processors and now they need to work on the gpu.

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