The particular hd7970 benchmarked Batman AC screenshot you are referring to completely differs from what review sites get. The guy with the gtx680 might be trolling, but the particular benchmark you are referring to is a DEFINITE troll.
Batman AC HD7970 DX11 Max settings, all different AA modes
1920x1200: 81fps http://www.anandtech.com/show/5261/amd-radeon-hd-7970-review/20
1920x1200: 68.6 fps http://www.techpowerup.com/reviews/AMD/HD_7970/8.html
1920x1200: 94 fps http://www.hardwareheaven.com/revie...-graphics-card-review-batman-arkham-city.html
hd7970 @ 1265mhz / 1505mhz: 103fps http://www.hardwareheaven.com/revie...-graphics-card-review-batman-arkham-city.html
Anyone who uses the AC benchmark for a review will be getting very inaccurate results as both NVIDIA and AMD have built optimizations into their driver stacks JUST for benchmark. In-game results in exterior scenes (most of the game) differ wildly from the benchmark.
http://www.xtremesystems.org/forums...orce-GTX-780&p=5071088&viewfull=1#post5071088