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sapphire 6670 and 7770 crossfire

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June 16, 2013 2:58:49 AM

Can sapphire radeon hd 6670 1gb gddr5 and Sapphire HD7770 1GB DDR5 Graphic Card used together by crossfire on asus m5a99 fx pro r2.0 mobo...nd what will be the performance..???

More about : sapphire 6670 7770 crossfire

June 16, 2013 3:08:12 AM

Those two GPUs cannot be crossfired. For crossfiring Radeon GPUs, they must be identical. Same make/model. I've heard of occasions where people have used cards of the same series, but different brands, but this hasn't been proven to my knowledge. Also, I don't think that the Radeon 6670 has crossfire support.
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June 16, 2013 3:09:54 AM

those two cannot be crossfired.
radeon hd 7770 can be crossfired only with 7750 and 7770. however, 7770 is preferred.
here's a compatibility list:
http://sites.amd.com/PublishingImages/Public/Graphic_Il...

peanutreaper486 said:
Those two GPUs cannot be crossfired. For crossfiring Radeon GPUs, they must be identical. Same make/model. I've heard of occasions where people have used cards of the same series, but different brands, but this hasn't been proven to my knowledge. Also, I don't think that the Radeon 6670 has crossfire support.

iirc radeon hd 6670 can be crossfired with radeon hd 6570 and 6670 gfx cards. they don't require external crossfire bridge connector (in case they have a connector slot, then the bridge is to be used).
6670 can also be used in asymmetric crossfire (amd dual graphics mode) with llano and trinity apus' igpus (but not with all of them).
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June 16, 2013 3:15:27 AM

No you can not Crossfire those two GPU's. And even if you could the 6670 is so low a GPU that you would not gain much if any performance since both cards would be running at the same core and memory speed of the lowest GPU in this case the 6670. Running Crossfire or SLI on two low end GPU's is never a good idea anyway you just do not gain enough to warrant do it in the first place.
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