Mac Pro 5,1 - Can i run 6 GTX Nvidia?

Discussion in 'Mac Pro' started by philliplakis, Nov 19, 2014.

  1. philliplakis macrumors member

    Nov 19, 2014

    I have a mac pro 5,1 12 core machine.

    currently running gtx 120 (Boot Screen)
    and 780 ti (Octane render)

    I don't use the 780ti for anything other than its cuda cores to render images.
    i have a large project coming up and i am wondering if i could run the following ?

    i just need my mac to recognise they are there

    pcie slot 4: GTX 120 (Boot screen if the 980 isn't ready)
    pcie slot 3: 4x to 16x riser - GTX 970 or GTX 980 macvidcards. (when its done)
    pcie slot 2: 16x to dual 8x ribbon - Dual GTX 970
    pcie slot 1: 16x to dual 8x ribbon - Dual GTX 780ti

    basicially i don't need to be attaching cords into them. they would be just there to feed octane render.

    In the mining forums which they use cuda aswell they only get 5-10% reduction in performance running similar setups on PC so just curios if this will work on a MAC and if not what is the Maximum?

    PS. I know about power supply this is not the question i am asking...
  2. leon771 macrumors regular

    Sep 17, 2011
  3. fhenry macrumors regular

    Feb 28, 2012
    A mp 2007 with 2 titans performed equal to a 2010 mp with less bandwidth (1/4 with 8 lines pci v1) in octane
  4. philliplakis thread starter macrumors member

    Nov 19, 2014

    Any one?
    Seriously don't want to network render...

    I can't pm tutor either... Can anyone please advice what is the maximum gpu OS X can support?

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