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Crossfire With HD5750 and HD6790

  • Radeon
  • Crossfire
  • Sapphire
  • PCI Express
  • Graphics
Last response: in Graphics Cards
January 23, 2012 8:51:25 PM

So, I am trying to crossfire the SAPPHIRE HD5750 and SAPPHIRE HD6790. I got a GIGABYTE GA-P55-UD3R motherboard with a PCI-E x16 and a PCI-E x4. I installed the latest catalyst version as well as the drivers for both cards. I have the HD5750 connected to the PCI-E x4 and the HD6790 to the PCI-E x16 slot. I connected them with the crossfire bridge but when I open the catalyst control center there is no tab to enable crossfire. I checked with GPU-Z and both cards are clickable but the crossfire status is disabled. What should I do? Thank you in advance.

More about : crossfire hd5750 hd6790

Best solution

January 23, 2012 11:40:49 PM

Nope, they do not crossfire. You must have either identical cards, or cards from the same series (ie 5850 and 5870) it's impossible to crossfire a 5750 with 6790. Sorry mate.
January 23, 2012 11:46:13 PM

Damn seller I gave him my pc specifications as I suspected that they wouldn't be compatible if they are different models for crossfire but he assured me they do...
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January 23, 2012 11:54:45 PM

Hmm. I would attempt to return it. They most certainly will not crossfire together.
January 23, 2012 11:57:13 PM

There is no way I am keeping it since I was specific to them about why I need it. I'll return it. Thank you for your quick reply and your help!
January 23, 2012 11:59:54 PM

No problem. It's always a shame to see people sell something, even if they know they are lying. If you'd be so kind could you select me as best answer?
January 24, 2012 5:07:52 AM

This chart shows which cards can be crossfired together. Just thought it might help the discussion a bit.
January 31, 2012 3:13:54 PM

Best answer selected by mousemonkey.
January 31, 2012 3:13:57 PM

This topic has been closed by Mousemonkey