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Intel SNB Linux Driver Can Out Run Windows Driver

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  • #16
    Originally posted by apholux View Post
    Intel recently announced 15.22 driver (15.​22.​1.​2361/15.​22.​1.​64.​2361) with OpenGL3.1 support - was this version used to capture performance on Windows?
    You guys should really address this. The 2361 build driver increases performance not just in OpenGL, but DX10-based games as well. Some testing done here: http://communities.intel.com/message/125916

    OpenGL performance increase is massive because 2361 not only enables OpenGL3.1, but hardware T&L/VS support(sounds similar to the Linux VS thread patch). I don't know why DX performance increased but it sounds like similar things might be going on too. According to 3DMark06 Batch Size tests, it has good gains in the smaller sizes, from which I've read shows how it should perform in unoptimized code.

    So Windows is getting outperformed not because Linux stack is better, but because Windows didn't receive the same updates Linux got yet.

    Another benchmark here: http://translate.googleusercontent.c...Shkxj-ntkd1EvQ

    DX10 games show significant gains.

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    • #17
      Originally posted by Craig73 View Post
      One thing that isn't clear to me... wouldn't the rights to use the patented technologies have been paid for by purchasing the hardware? [it's not like vendors sell their drivers]
      Licenses are very different written from time to time. Some Licenses are bound to the hardware, some licenses are bound to the software, and some licenses are bound to the combo thereof.
      It seems like nobody has been able to really figure out what the S3TC is bound to, and if it differs from manufacturer to manufacturer for the cards(i.e not Intel/nVidia/AMD, but ASUS, Gigabyte...), for the chips (Intel, AMD, nVidia), or some other rather random occurance. This just seems to be a mess no-one really wants to pick unless they really have to AFAIK.

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      • #18
        Originally posted by DavidC View Post
        You guys should really address this. The 2361 build driver increases performance not just in OpenGL, but DX10-based games as well.

        OpenGL performance increase is massive because 2361 not only enables OpenGL3.1, but hardware T&L/VS support(sounds similar to the Linux VS thread patch). I don't know why DX performance increased but it sounds like similar things might be going on too. According to 3DMark06 Batch Size tests, it has good gains in the smaller sizes, from which I've read shows how it should perform in unoptimized code.

        So Windows is getting outperformed not because Linux stack is better, but because Windows didn't receive the same updates Linux got yet.
        DX10 games show significant gains.
        I didn't read your message, but I suspected it and I did some tests:
        http://www.linuxsystems.it/index.php...raphic-drivers

        Windows driver is still faster than linux one.
        ## VGA ##
        AMD: X1950XTX, HD3870, HD5870
        Intel: GMA45, HD3000 (Core i5 2500K)

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