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using two different graphics cards to run multiple displays

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Michael Garske
using two different graphics cards to run multiple displays
on Oct 26, 2012 at 3:59:16 pm

From what I've read it should be a simple matter to use two different graphics cards so that I can run 3 displays on my Windows 7 machine.

Currently I have a GTX580 3Gb installed and I'd like to install my old Geforce 8600GT to run a third monitor.

Does anyone know how this will affect After Effects? Will I have to specify which card After Effects should use for render in anyway or will it automatically revert to the 580 in some way?

It's possible this creates issues I'm not aware of in After Effects or Premiere. If anyone has any other insights that would be awesome! Thanks in advance for your advice!

Windows 7 64bit
CS6
ASUS P9X79 PRO (supports triSLI)


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Walter Soyka
Re: using two different graphics cards to run multiple displays
on Oct 26, 2012 at 4:09:05 pm

I don't think this will be a problem -- that card is supported in neither Ae nor Pr, so they should not even try to use it.

The only thing that may be a factor is OpenGL-accelerated effects in Ae (like Magic Bullet Looks, Optical Flares, Element 3D, FreeForm Pro and ShapeShifter AE). I'm not sure what the rules are for which card to use in a multi-GPU situation -- whether they always use Display 1, or whether they use the card the main interface is open on.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
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Tero Ahlfors
Re: using two different graphics cards to run multiple displays
on Oct 27, 2012 at 12:01:26 pm

[Michael Garske] ". If anyone has any other insights that would be awesome!"

Well the GTX 660 (maybe some other recent models too) can run 4 displays at once...


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