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Thread: NVIDIA vs. AMD 2D Performance Benchmarks

  1. #21
    Join Date
    Sep 2009
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    210

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    Quote Originally Posted by entropy View Post
    Do you run a compositor?
    From my experience 2d performance significantly drops for Catalyst + Compositor.
    Yeah, KWin. I just noticed that after suspending compositing scrolling is indeed smoother. Not sure if it's still as smooth as Gallium, but these subjective things are hard to judge.

  2. #22
    Join Date
    Nov 2012
    Posts
    192

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    Qt4 using the raster graphicssystem (default in 4.8) or native (default <4.8)?

    The raster system is software rendering, which is expecially faster on nvidia, since the using native and relying on 2D acceleration was hopelessly slow.

  3. #23
    Join Date
    Feb 2008
    Posts
    1,239

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    Quote Originally Posted by molecule-eye View Post
    Yeah, KWin. I just noticed that after suspending compositing scrolling is indeed smoother. Not sure if it's still as smooth as Gallium, but these subjective things are hard to judge.
    I count four people here on forums which use kwin and have some issues with fglrx, so i think it is best to investigate what is main "slowness" culprit with using kwin - is it composite or not, etc. .

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