2X Graphics cards, which one is used by Final Cut Pro X?

Discussion in 'Digital Video' started by gnomeisland, Mar 14, 2013.

  1. macrumors 6502

    Joined:
    Jul 30, 2008
    #1
    I installed a GTX 570 in my Mac Pro. So far everything works great and it is recognized just fine. I left my GT 120 in there because I have the space and it is the native card.

    I know with Resolve/CUDA the recommended set up is run the displays off the GT 120 and use the faster card just for CUDA. Does OpenCL in Final Cut X work the same way? Honestly, I haven't noticed much of a difference in Final Cut (although Lux Mark and other benchmark programs shows a very large performance increase). I am currently still running the displays off the GT120 and wondering if that is the problem.
     
  2. macrumors 68000

    Joined:
    Mar 1, 2010
    #2
    Supposedly on cards that use more then 2GB of VRAM OpenCL is not activated. Now with Mac OSX 10.8.3 there is no limit & OpenCl will work with no work around. Not sure if that is your problem or not.
     
  3. thread starter macrumors 6502

    Joined:
    Jul 30, 2008
    #3
    I don't have more than 2GB on the card so I don't think that that is the issue. Does OS X fully use the card if there isn't actually a display plugged in?
     
  4. macrumors regular

    Joined:
    May 11, 2009
    #4
    I believe Apply specifically recommend only one graphics card on an FCP X system.
     

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