ATi Radeon HD 4870 *and* nVidia GeForce GT 120 in a Mac Pro?

Discussion in 'Mac Pro' started by zuurbekje, May 22, 2010.

  1. zuurbekje macrumors newbie

    May 22, 2010
    I have a current Mac Pro with a ATi Radeon HD 4870, and now I would like to add a third monitor.

    Now, a friend of mine had some weird problems when adding a second 8800GT to the previous generation Mac Pro -- remember, the nVidia 8800GT was the "better" option for that machine, and the Apple Store website would only give the option of just one nVidia 8800GT. (Or up to 3 or 4 ATi 2600XTs.) The machine would boot and all, but Final Cut Pro would crash when rendering. The solution was a downgrade to 2xATi 2600XT.

    The current situation is of course much the same: one can order multiple nVidia GT 120s or one ATi 4870. I am not going to try to add a second 4870 to my system, given my friend's experience with two "better" videocards. But I would like to add an nVidia GT 120 for this third monitor I'd like to add. Does anyone have experience with this? Will this work okay? And: is this risky in terms of OpenCL, i.e. is it possible that OpenCL gets confused as to what graphics card to use? That maybe, in a worst-case scenario, OpenCL is shut off altogether?
  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    I remember seeing some people with the exact same config. Dual 8800GTs may be too much for the PSU
  3. Mackilroy macrumors 68040


    Jun 29, 2006
    You'll be fine. One of the former posters here (Tallest Skil) ran a 4870 and GT 120 in his machine.

    I doubt you'll have any problems regarding OpenCL, though I could be wrong.
  4. freeman727 macrumors 6502

    Feb 9, 2009
    This configuration definitely works. I have an XFX ATI 4870 (hacked) and GT120 in my MP. It drives 3 screens.
  5. rickvanr macrumors 68040


    Apr 10, 2002
    I can also confirm this works.

    I've got an ATI 4870 driving my 23 ACD, and a GT120 driving my 50" TV.
  6. zuurbekje thread starter macrumors newbie

    May 22, 2010
    Thanks for informing me about your results! Much appreciated! (I know what to get now.)

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