We've got a whole mess of cards here we'll be comparing the HD 6990 CFX setup against including the HD 6990 by itself along with the HD 6870, HD 6950 and HD 6970 all in CrossFire.
For NVIDIA we've got the GTX 580, GTX 560 Ti in SLI and the GTX 580 in SLI.
Let's get started!
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Straight away we just see some massive performance out of the gate that puts the HD 6990 CFX setup way ahead of everything else here.