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Sandy Bridge Bandwidth Issues?

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A PC tech at memory express convinced my friend that Sandy Bridge has bandwidth issues when dealing with 3 or more cards?  So he got 2 6970s instead of 3 6950s.

 

Is that true?  I'm not reading anywhere that it is true.  Plus, due to results from H, we saw the complete opposite.  3x 6970s blew away 3x 580s.  It was a driver problem, not a bandwidth problem.

post #2 of 2
Quote:
Originally Posted by Domino View Post

A PC tech at memory express convinced my friend that Sandy Bridge has bandwidth issues when dealing with 3 or more cards?  So he got 2 6970s instead of 3 6950s.

Is that true?  I'm not reading anywhere that it is true.  Plus, due to results from H, we saw the complete opposite.  3x 6970s blew away 3x 580s.  It was a driver problem, not a bandwidth problem.

The only thing I think the tech was talking about was x8 vs x16 and it has been proven that their is minimal to no diff.

I think 2 6970s was a better idea because they are faster cards.
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