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Thread: NVIDIA VDPAU Reference Benchmarks

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  1. #1
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    Default NVIDIA VDPAU Reference Benchmarks

    Phoronix: NVIDIA VDPAU Reference Benchmarks

    At the request of Phoronix readers curious about the NVIDIA VDPAU performance between different GeForce graphics cards, here are some results.

    http://www.phoronix.com/vr.php?view=17445

  2. #2
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    What exactly is mp4-decoding compared to h264 decoding?

  3. #3
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    Quote Originally Posted by h**2 View Post
    What exactly is mp4-decoding compared to h264 decoding?
    Most likely it's meant to represent mpeg 4 part 2, or DivX/XviD. As opposed to mpeg 4 part 10, which h264 falls under.

  4. #4
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    Any benchmarks using the VDPAU state tracker with mesa on r300, r600 & nouveue?

    Would be interesting to see how this is progressing - even if it's only mpeg2

  5. #5
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    Can anyone offer any incite as to why VC-1 takes such a dive on newer hardware?

    That would seem like a pretty serious regression to me, given the difference over other decoding tests.

    Is it failing to decode via VDPAU and falling back to the CPU?

    It would have been nice to spend a little more time looking into the reason behind it, Michael.

  6. #6
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    Quote Originally Posted by tomm3h View Post
    Can anyone offer any incite as to why VC-1 takes such a dive on newer hardware?
    Those 3 cards which are faster use VP2. This version could not fully accelerate VC-1 on the gpu, in particular the bitstream decode is done on the cpu. I bet that's the reason, give it a slow cpu and things won't look so rosy :-).
    Plus I'm not sure it would make even sense to have faster VC-1 acceleration, no idea if higher resolutions / multistream etc. are needed somewhere (this might be the reason why the gt2xx are a bit faster there than the later ones).

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