Forum Moderator Paradigm Shifter asked if I could do some scaling charts for the Eyefinity6 vs. E6 CFX performance. I've set them up into three groups. They are scaling with widescreen, 3x1-L Eyefinity and 3x2 Eyefinity. Hopefully these will be a couple more pieces of analysis to help you make buying decisions.
This is the widescreen scaling data, along with a few notes.
Half-Life 2 doesn't "scale" well, but it's already pushing 150-200fps at these resolutions. Not much more room for any scaling.