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Thread: When It Works, Intel Core i5 2500K Graphics On Linux Are Fast!

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  1. #1
    Join Date
    Jan 2007
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    Default When It Works, Intel Core i5 2500K Graphics On Linux Are Fast!

    Phoronix: When It Works, Intel Core i5 2500K Graphics On Linux Are Fast!

    After a month of headaches for Intel and myself, there are now Sandy Bridge graphics benchmark results from the Intel Core i5 2500K under Linux to finally publish. Sandy Bridge was a tough launch for Intel in terms of the Linux coverage with the media having problems building a working driver stack and then when I finally got my hands on a CPU, I ran into an entirely different set of show-stopping problems. The developers still have not solved the biggest original issue yet, but Intel sent out a new motherboard and another CPU and it happens to "just work" nicely under Linux. When using the latest bits of their open-source Intel Linux graphics code, the performance on the Core i5 2500K is actually quite impressive compared to other open-source Linux drivers.

    http://www.phoronix.com/vr.php?view=15669

  2. #2
    Join Date
    Dec 2008
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    Default Comparison with current-gen Intel IGP?

    Michael, would be great if you could do a comparison with current Core IronLake IGP to have a better idea what to expect when upgrading from current gen to SandyBridge.

    With my Core i7 920 (IronLake), I noticed a HUGE improvement between 4x and 10x in some GL apps after upgrading to Mesa-git compared to Mesa 7.9.

    Tip for mesa-git adventurers: if not building in /usr/lib, don't forget to set LIBGL_DRIVERS_PATH otherwise the older DRI driver will still get loaded by the newly built libGL (which works but do not give *that* big performance increase).

  3. #3
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    Default

    How did you test integrated graphics with an ASUS P8P67-M PRO board? P67 has got no graphics support at all.

  4. #4

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    Quote Originally Posted by Kano View Post
    How did you test integrated graphics with an ASUS P8P67-M PRO board? P67 has got no graphics support at all.
    Err P8PH67.

  5. #5
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    Default

    That does not exist, maybe a P8H67-M PRO? Did you try booting via UEFI, that's what i would have done.

  6. #6
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    Default

    Goodness. 12-self-referencing links in six consecutive paragraphs. This is a record to my knowledge, even for phoronix.

  7. #7

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    Michael, did the new motherboard have an updated BIOS? If the BIOS did not change, perhaps the model you had was defective.

  8. #8
    Join Date
    Oct 2008
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    3,173

    Default Just a reminder to anyone looking to buy

    The K series has twice the GPU power of the non-K, in addition to some overclocking and other features. You definitely want that, for the extra $10 or whatever it is.

  9. #9
    Join Date
    Nov 2008
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    Default

    If you are after Intel's new integrated graphics, not only do you need to be using a modern distribution for now, but also you need to be building your own driver (or obtaining the packages from a repository) so that you are on at least the Linux 2.6.37 kernel, Mesa 7.10, and xf86-video-intel 2.14.0.
    Enduser linux driver update process FAIL

  10. #10
    Join Date
    May 2009
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    37

    Default

    Your first Sandy Bridge CPU that you put on the ASUS P8H67-M PRO motherboard was an Engineering Sample CPU:
    http://phoronix.com/forums/showthrea...247#post165247

    Was your second Core i5-2500K that came with the Intel BLKDH67BL a production quality one? If yes then those two cpus are slightly different (see link above) and one could try to switch CPUs. Maybe a production quality CPU works with the Asus P8H67-M Pro board.

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