GTX 680 4GB running two 27" cinema displays ?

Discussion in 'Mac Pro' started by Rodrigo Lizana, Dec 7, 2014.

  1. Rodrigo Lizana macrumors newbie

    Joined:
    Dec 7, 2014
    Location:
    Santiago Chile
    #1
    Hi all :

    I'm in the process of upgrading my 4.1 2x2.26 Ghz Mac Pro to handle 2k Da Vinci resolve color correction and Avid editing.

    I started with the drives and now it's all SSD. 4x 480GB raid 5 SSD (under Apple Raid controller card) plus another 480GB SSD on the second optical Bay as a start up disc. With the Raid I'm getting something like 350/550 write/read speeds which is Ok for what I need.

    Second I'm for the GPU. I've got 3x EVGA GTX 680 4GB RAM (flashed for Mac). One goes inside the Mac as a the regular video card and the two others will go inside a Cubix Xpander for GPU processing. But my questions goes for the one inside the Mac... :

    Can I run two 27" Apple Cinema displays at max resolution from one GTX 680 ?.
    Should I use both DVI ports (one for each monitor) on the GTX for that purpose ?. Do I need any adapters ?.

    Any help will be greatly appreciated.

    Thanks a lot !!!.

    Rodrigo
     
  2. RoastingPig macrumors 68000

    RoastingPig

    Joined:
    Jul 23, 2012
    Location:
    SoCal
    #2
    You need the dvi-"dual link" to mini displayport from atlona $100...they also offer the dvi non dual to mini displayport that will not work....paired with one displayport regular to mini displaport adapter $7
     
  3. Rodrigo Lizana thread starter macrumors newbie

    Joined:
    Dec 7, 2014
    Location:
    Santiago Chile
    #4
    Thanks for the suggestions. There also seems to be an Apple DVI dual link to mini display port available (much smaller).

    The GTX 680 4GB, I believe it also comes with a display port. Wouldn't make more sense to go from there into the mini display port (via adapter) to the monitor ?.

    Thanks again !

    ----------

    http://www.bhphotovideo.com/c/product/790254-REG
     
  4. Synchro3 macrumors 65816

    Synchro3

    Joined:
    Jan 12, 2014
    #5
    Yes

    No, use one Display Port and one DVI Port.

    The Apple adapter is an MiniDisplayPort to Dual-Link-DVI-Adapter, not DVI Dual Link to MiniDisplayPort. You need MDP for your LED cinema display.

    You need also a DisplayPort to MiniDisplayPort adapter like this: http://www.ramelectronics.net/product.aspx?zpid=1518
     

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