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Does Crossfire with different cards work?

Tags:
  • Performance
  • Boost
  • Crossfire
  • Graphics
Last response: in Graphics & Displays
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November 19, 2013 4:15:56 PM

I have a Sapphire 7970 Ghz card, and was wondering if I could add say a 7950 card to this to boost performance without breaking the bank? I guess crossfire will make the two cards together work at the lower of the two clock speeds, but overall boost performance as there are more shaders/cores? And also could I over clock the slower card to make up to Ghz spec?

Will they both look like a single card to the OS or will it see 2 GPUs?

More about : crossfire cards work

November 19, 2013 4:21:03 PM

Yes you can. CF works with anycard that starts with the same first 2 numbers, not including the new 2xx series. I believe, but not positive off the top of my head, the 2xx cards can cf with the 79xx series cards.

so in conclusion, yes a 7970 can cf with a 7950, but not with a 78xx or 77xx.

It will take the lower of the two clockspeeds and the lower of the 2 VRAMs but yes, other than that it will still boost your performance a bit.
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