its all about the drivers. performance will improve with time
looking at the charts there is 5-10 fps difference which is not the end of the world. you can get those 5-10 extra fps if you overclock your processor
also they made that review with 12.7 drivers while we have 12.11 version now so read these reviews with a grain of salt
don't worry about that. if you don't have problem running games with your card then you're good to go.
Well, I can for example run BF3 single player at 60fps+ with 1080p res, ultra, 8xaa but once I play multiplyer fps drastically drop, I think mu cpu is limiting, but simply if someone said which one would be better 7950 or 660 ti, what would the answer be?