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Some Good & Bad News For The Nouveau Driver

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  • Thunderbird
    replied
    Really make sure that both drivers are running the GPU at the same clock speeds else especially on the 8600GT / 8800GT you may be comparing apples to oranges.

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  • Artemis3
    replied
    The 8800GT and the 9800GT are virtually identical. Cards using the g92a chip can happily crossflash into either without issues. Some 9800GT come with the g92b chip which is 55nm instead of 65nm, and allows tri-sli. The 9800 firmware supports phys, and thats about it.

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  • marek
    replied
    I think VDrift just uses a different feature set for the GL3 and GL2 APIs, with the GL2 code path being simpler and therefore faster than the GL3 one.

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  • phoronix
    started a topic Some Good & Bad News For The Nouveau Driver

    Some Good & Bad News For The Nouveau Driver

    Phoronix: Some Good & Bad News For The Nouveau Driver

    With our big AMD Linux GPU / driver comparison we found its open-source Gallium3D driver to be noticeably faster than the classic Mesa DRI driver across an array of Radeon hardware from multiple generations. However, the official Catalyst driver was multiple times faster (roughly 5.18x faster) than the Gallium3D driver, not to mention its lack of proper support for OpenGL 3/4, VA-API/VDPAU/XvBA video playback, and many other features only found within the proprietary Catalyst driver. Now though it is time to see how the Gallium3D Nouveau performance compares to that of NVIDIA's proprietary Linux driver across different GeForce graphics cards.

    http://www.phoronix.com/vr.php?view=15607
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