Problems with 5870 & 5770 for Maya?

Discussion in 'Mac Pro' started by strausd, Nov 16, 2011.

  1. strausd macrumors 68030

    Jul 11, 2008
    So right now my current set up is a 24" ACD, a Dell u2311h, and some 1080p TV running off a 5870. I have heard that whenever you add another monitor, in cuts the amount of video RAM your GPU uses for each monitor. And because of this, I only plug in the TV cable when I want to watch a movie or need to show something on the TV.

    I am wanting another Dell u2311h and will need another GPU. I am looking into the 5770 because it is only $250. I do a lot of Maya work and the added screen would be extremely helpful.

    Whenever I am on Maya, the viewport is always on the 24" ACD, and I have all my other windows spread out across the u2311h. The main windows I will have open on the u2311h are nothing GPU intensive such as the outliner, hypershade, UV texture editor, light linking, render view, and a few others.

    And because I heard that when you have multiple monitors running off 1 GPU the video RAM is cut in half or thirds, I would like to have the two u2311h's running on the 5770 to keep the 5870 just for the viewport.

    I am wondering if this will cause any problems. Will Maya get confused by having some windows running on monitors from the 5770 and the viewport on the 5870? Would going from 2 monitors on the 5870 to 1 on the 5870 provide any performance increase? Would having 3 monitors (u2311h X 2 & TV) on the 5770 for the non-intensive windows cause any problems?

    Right now I just do not want to have any performance hits by adding another monitor. So if I would have some performance hit, what would be the ideal setup for Maya with a 5870, 5770, ACD, 2X u2311h, and a TV?

    Lastly, I am currently under the impression that I will need a small external power supply to do this. Both optical drive slots are filled and I am perfectly fine having an external power supply on top of the Pro and a wire running into the pro from the top PCIe slot. What power supply would you recommend?

    Thanks in advance for the help!
  2. badlydrawn macrumors newbie


    Jan 11, 2007
    vie, austria
    I run Maya 2011 on a two graphics card setup and haven't experienced any problems. My primary card is a 5770, and the secondary is the old NVidia GeForce 7300 GT. I have an 8800GT, but I don't run anything intensive on that screen, hence no need for that power.
  3. strausd, Nov 17, 2011
    Last edited: Nov 17, 2011

    strausd thread starter macrumors 68030

    Jul 11, 2008
    So do you only have your viewport running off of your 5770?

    I am also curious if having two GPUs of different power will limit the performance on the 5870. Does anybody know if that could happen?

    Also, does anybody have any suggestions for an external power supply to run the 5770?

Share This Page