Radeon 295X2 viable in Yosemite?

Discussion in 'Mac Pro' started by benjobe2513, Oct 9, 2014.

  1. benjobe2513 macrumors member

    benjobe2513

    Joined:
    Sep 10, 2008
    Location:
    Humboldt County, California
    #1
    Since Netkas has confirmed that the Radeon R9 290X works out-of-the-box within Yosemite (Thank you, Netkas!) then would it make sense that the 295X2, which is basically just two 290X chips on the same card, would work as well? And if so then would OSX recognize them as two cards or just one?

    (Of course the 295X2 would require an external power supply)
     
  2. 666sheep macrumors 68040

    666sheep

    Joined:
    Dec 7, 2009
    Location:
    Poland
    #2
    Different device ID, 295X2 does not work properly even after adding it to drivers (according to people who tried).
     
  3. Cindori macrumors 68040

    Cindori

    Joined:
    Jan 17, 2008
    Location:
    Sweden
    #3
    All double GPU cards are detected as 1 GPU since Crossfire/SLI drivers don't exist in OS X.

    I don't see why it wouldn't work as long as the drivers are modified with the device ID. It would probably require binary editing as well (not just info.plist) which is trickier and really a pain in the ass to maintain between OS X updates. I don't recommend it.
     
  4. benjobe2513 thread starter macrumors member

    benjobe2513

    Joined:
    Sep 10, 2008
    Location:
    Humboldt County, California
    #4
    Could you please point me to any forum posts that discuss this experience with the 295X2? I've tried googling and searching forums but I cannot find any. Thank you.
     

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