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Thread: Intel Sandy Bridge Linux Graphics? It's A Challenge

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  1. #1
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    Default Intel Sandy Bridge Linux Graphics? It's A Challenge

    Phoronix: Intel Sandy Bridge Linux Graphics? It's A Challenge

    This week at the Consumer Electronics Show in Las Vegas (I'll be there looking out for Linux), Intel will officially launch their next-generation Sandy Bridge micro-architecture and CPUs. The NDA though expired at midnight on these first CPUs so there is now a stream of reviews coming out. Is there any Linux graphics test results for the Core i5 2500K and Core i7 2600K? Unfortunately, there is not...

    http://www.phoronix.com/vr.php?view=ODk2OA

  2. #2
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    So in the end, we will have to wait for Q3/Q4 of 2011 in order to see a "proper" support of Sandy Bridge packed in our distribution.
    Thankfully they have started the Linux support a year ago...

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    Quote Originally Posted by spykes View Post
    So in the end, we will have to wait for Q3/Q4 of 2011 in order to see a "proper" support of Sandy Bridge packed in our distribution.
    Thankfully they have started the Linux support a year ago...
    Gentoo Linux users probably do not have to wait that long. The source code is available now, so they just need to switch to instruct the package manager to install it, which might be somewhat involved, but it will become easier as more Gentoo Linux users obtain Sandy Bridge processors and write ebuilds for the newer software, assuming that they have not written them already.

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    Touché Michael. Entirely correct, and a rightful shot at Intel.

    Then it's a good sign that Linux is getting more publicity, maybe even resulting in the press kits having built drivers


    Re the Sandy encoding support - anyone know if it will merely accelerate x264 (keeping its excellent quality), or will it be a more complete block like the GPU encoders (whose quality sucks, incidentally)?

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    Quote Originally Posted by curaga View Post
    Re the Sandy encoding support - anyone know if it will merely accelerate x264 (keeping its excellent quality), or will it be a more complete block like the GPU encoders (whose quality sucks, incidentally)?
    Initial testing shows much better quality than CUDA or Stream based accelerators. At least for Windows (Media Espresso 6). However, since this is a dedicated ASIC, the Linux implementation will have the same quality.

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    Quote Originally Posted by gbeauche View Post
    Initial testing shows much better quality than CUDA or Stream based accelerators. At least for Windows (Media Espresso 6). However, since this is a dedicated ASIC, the Linux implementation will have the same quality.
    Correct me if I'm wrong but IIRC Media Espresso doesn't actually do the actual encoding on the GPU, that is still done on the CPU. What is done on the GPU is the filtering, resizing etc the same as TMPEnc does.

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    Lol @ Intel; Buy Fusion.

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    Quote Originally Posted by V!NCENT View Post
    Lol @ Intel; Buy Fusion.
    So far AMD's video playback support is even more dismal then intel's.

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    Quote Originally Posted by deanjo View Post
    Correct me if I'm wrong but IIRC Media Espresso doesn't actually do the actual encoding on the GPU, that is still done on the CPU. What is done on the GPU is the filtering, resizing etc the same as TMPEnc does.
    They have a special version that enables HW decode & encode on Intel Sandy Bridge. Likewise, the CUDA version uses the new NVIDIA component. Hence, quality is not that good.

    Some tests:
    http://www.anandtech.com/show/4083/t...2100-tested/9#
    http://www.legitreviews.com/article/1506/8/
    http://static.pcinpact.com/images/bd...espresso-6.jpg

  10. #10
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    Quote Originally Posted by gbeauche View Post
    Initial testing shows much better quality than CUDA or Stream based accelerators. At least for Windows (Media Espresso 6). However, since this is a dedicated ASIC, the Linux implementation will have the same quality.
    Thanks. It remains to be seen then how far it is from x264, but at least it should be good for realtime encoding.

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