They're ok, its just unfortunate their Battlefield 3 ones don't really represent the general level of performance you get.
EDIT
After some digging i found out why. They use a part of the single player campaign called Thunder Run, which ironically is a very un-demanding part of the game. Basically their bf3 benchmark results mean nothing in real world.
Dave Bauman - AMD comments on the anand review
Ryan @ anand replies about it
Source
http://www.anandtech.com/show/5261/amd-radeon-hd-7970-review/22
So basically they admit they use a non demanding part of the game to bench.
TL : DR If you want accurate representation of battlefield 3 performance probably best to look elsewhere.