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How do 69xx CF together, only as good as the weakest?

post #1 of 3
Thread Starter 
For instance, is there any gains AT ALL in 69xx CF, if

6970 main card + 6950

or say

6950 shader unlocked main card + locked 6950

or

6950 with big OC + 6950 at stock
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post #2 of 3
The stronger card will downclock to match the performance of the weaker card.
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post #3 of 3
The higher card will clock down to match the speeds of the slower card.

The 6970 will clock down to 6950 speeds if they are in crossfire.
Or you can unlock shaders and put the 6950 to the 6970 speeds and it would act like another 6970.
    
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