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27-Way NVIDIA & AMD Graphics Card Benchmarks On Linux

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  • #16
    Originally posted by remm View Post
    Ok, so the 770 looks like the best buy right now for a higher end card on Linux.
    Actually, the old (?!?!) 780 is a very interesting deal.
    I just bought a (Gigabyte) 780OC'ed for 100$ more than price of a 770OC'ed. (and >200$ less than the price of a 780Ti).

    FWIW, I'm connecting it to a Dell U2711 1440p display.

    - Gilboa
    Last edited by gilboa; 12-03-2013, 02:30 AM.
    DEV: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB + 2x3TB, GTX780, F21/x86_64, Dell U2711.
    SRV: Intel S5520SC, 2xX5680, 36GB, 4x2TB, GTX550, F21/x86_64, Dell U2412..
    BACK: Tyan Tempest i5400XT, 2xE5335, 8GB, 3x1.5TB, 9800GTX, F21/x86-64.
    LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F21/x86_64.

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    • #17
      Originally posted by deanjo View Post
      Does it seem to make a difference in performance?
      no - only in a distant future with big AAA titles. I think AMD should also release cheaper 2 GB cards.
      Either way - I just wanted to know on which basis you did the price comparison. So again: are those all 4 GB cards?

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      • #18
        OpenCL performance AMD vs Nvidia:

        Low complexity -> Amd have almost double performance over Nvidia
        Normal Complexity -> ~Same performance
        above normal -> Nvidia wins about double or more performance than AMD
        High Complexity -> Amd stop working or does slower than a 2007 CPU.

        So if you want to do complex calculations with Opencl Go Nvidia if you want to do fairly simple things amd would give you the best results.

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        • #19
          Originally posted by Sdar View Post
          OpenCL performance AMD vs Nvidia:

          Low complexity -> Amd have almost double performance over Nvidia
          Normal Complexity -> ~Same performance
          above normal -> Nvidia wins about double or more performance than AMD
          High Complexity -> Amd stop working or does slower than a 2007 CPU.

          So if you want to do complex calculations with Opencl Go Nvidia if you want to do fairly simple things amd would give you the best results.

          What's the reason behind this?
          It seems weird...

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          • #20
            Originally posted by extraymond View Post
            What's the reason behind this?
            It seems weird...
            The most widespread theory is that cause Amd don't have support for function calls or spill everything must be inlined causing an Out of resources problem...

            Anyway AMD admits that there's a problem and they already said that they're working on it (i think they said this in late 2011 or 2012) in October of this year they said that probably the only GPUs that are going to be fixed are the GCN ones...

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            • #21
              Originally posted by tomtomme View Post
              no - only in a distant future with big AAA titles. I think AMD should also release cheaper 2 GB cards.
              Either way - I just wanted to know on which basis you did the price comparison. So again: are those all 4 GB cards?
              By that time you are probably going to look at replacing your card anyways (and chances are there will be cheaper faster cards by then).

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              • #22
                Originally posted by Sdar View Post
                Anyway AMD admits that there's a problem and they already said that they're working on it (i think they said this in late 2011 or 2012) in October of this year they said that probably the only GPUs that are going to be fixed are the GCN ones...
                Source?

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                • #23
                  Originally posted by gutigen View Post
                  Source?
                  http://devgurus.amd.com/

                  I need some time to find the post... but i have this one of Blender cycles:

                  http://devgurus.amd.com/thread/160162 <--- In this one they said that cycles (that is not working cause the Oencl bug is going to be fixed probably in GCN cards only)
                  there's at least 2 more threads about cycles in devgurus... but they said almost the same thing.

                  There's a late 2011 or early 2012 post where the problem appear for first time but i can't find it... there's a lot of posts since that and i can't remember the name of that one.

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                  • #24
                    I found this one -> http://devgurus.amd.com/thread/158824
                    14-mar-2012
                    Thanks for reporting this. There is a known issue where extremely large kernels will not work on our implementation. This is a design flaw of our intermediate language and will not get fixed anytime soon. I will look into this issue to see if this is the same problem.
                    (the problem is not with too "Extremely large" kernels... just large kernels)

                    and as you can see works fine with Nvidia and Intel (and AMC CPU) but not with amd Gpu.


                    but there's an older post (~2011) that talk about this... but is not easy to find something into so many posts :S
                    Last edited by Sdar; 12-03-2013, 04:38 PM.

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                    • #25
                      Thanks for the benchmarks

                      I bought a GTX760 for my new build based mainly on these and the price here in the UK.
                      I also bought premium membership to support the great work you're doing up here.
                      Keep it up.

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