If I have a new Mac Pro with two 5770's installed, I can run up to 6 displays right?

I need to run a monitor and 5 projectors

  • Asked by Jacob S from Beverly Hills
  • Sep 2, 2010
ATI Radeon HD 5770 Graphics Upgrade Kit for Mac Pro (Mid 2010)

ATI Radeon HD 5770 Graphics Upgrade Kit for Mac Pro (Mid 2010)

Product No Longer Available

3 Answers from the Community

  • Best Answer:

    You will be able to run six display devices, yes, but with some very steep costs. The first and up front cost is going to be the necessity of FOUR MiniDisplayPort -> Dual Link DVI adapters. This is required when running three displays simultaneously on a single card, regardless of whether or not you have one or two cards.

    The other cost is in speed. The second card will not run at its ful rated x16 link speed, but in fact will max out at x8, since the Mac Pro has a maximum of 24 dynamically allocated PCI-E lanes, with the x16 link reserved for slot #1 (graphics). So for your main display, connect it to the card in slot #1 so it runs at the fastest speed possible.

    • Answered by Eric R from Hayward
    • Oct 25, 2010
  • The most economical use is to drive four monitors/projectors total.
    Keep your old card to drive two monitors.
    Use this newer card to drive two monitors.

    The older card, probably a Gt120, has 512mb. Use this to drive two smaller (e.g., 24) lower resolution monitors.
    Use the 5770 to drive the two larger (e.g., 30) higher resolution monitors.

    These can all be driven directly by passive cables (no power required) with cable adapters to DVI monitors as needed.

    Otherwise, you will need to invest in the "active" mini-display to dvi adapters (powered by USB port) to drive three monitors/projectors total with the one card. There are PC versions of active "display-port" to DVI adapters that may be used with a mini-display-port to display-port adapter at possibly lower costs.

    • Answered by Bill A from Mission Viejo
    • Jan 3, 2011
  • Yes your mac pro can support the 5770 with two dvi ports and 4 mini display ports. SO yes just get the adaptor for your monitors if needed.

    • Answered by Kyle H from Naples
    • Sep 15, 2010