Originally Posted by slaWter
Even though you just posted a completely opposite opinion of mine, I think you need at least a 2560x1600 (or 2560x1440) resolution to even justify putting up with Crossfire... Wait what? I mean justify using two such powerful cards. Seriously, I don't think 7970 CF makes sense for 1080p especially considering most 1080p PC screens are just flat out crap.
Your theory about it being a 16:10 issue is interesting! How knows, could be the case...
I agree that a high resolution, 2560x1440 or 2560x1600 is necessary for a crossfire setup to be fully utilized. But I don't think it's entirely ridiculous to run 1080p with 8xAA/16xAF and maxed out settings on a 7970 crossfire setup.