http://www.techpowerup.com/reviews/N...GTX_680/1.html


I quess its fair to say that its 1:1 now.

Perfomance 1920 or above is slightly better.
Total power consumption on average is pretty much identical. (+3W to GTX680)
Perfomance per watt is slightly better also on high resolutions.

AMD will keep up if they drop their price just some cents below this newborn green.