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SLI with two different cards

have a build on its way and its sort of a budget build but I have things to upgrade and my first card will be a GeForce 660 2GB. I was wondering if later if I wanted to setup SLI would the 3Gb version of the 670 or 680 I think it is work with it? or would I be better off leaving the 3gig to itself? Ive heard it both ways.
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  1. As I know u need 2 from the same card to do SLI. No way u can use 2 cards with different GDDR.
  2. Best answer
    Dett27 said:
    have a build on its way and its sort of a budget build but I have things to upgrade and my first card will be a GeForce 660 2GB. I was wondering if later if I wanted to setup SLI would the 3Gb version of the 670 or 680 I think it is work with it? or would I be better off leaving the 3gig to itself? Ive heard it both ways.


    No it must be two of the same cards ie. 2 x 660 or two 670 for sli. You can have different cards (like a stock version and an OC version) but they need to be the same model.

    You can however use the 660 as a dedicated PhysX card, but that would be a waste in my mind. Getting a second 660 to sli would be the best bet.
  3. OK got it thanks guys that makes sense to me.
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