So we started with some great scaling on 3DMark with our Sapphire cards and in Battlefield 3 we get good single and dual card performance at both 1920x1080 and 5760x1080. Moving past dual GPUs to Quad proves problematic for both NVIDIA and AMD on X79 though as the game suffers from crashes on NVIDIA and corruption on AMD, both should be fixed in upcoming drivers we hope. The Tri 7970 doesn't suffer to the same extent though and offers us some excellent framerates with three cards installed, the result of some decent scaling.
Here are examples of how the game looks at our tested settings.