I would request benchmarks to prove it in that case as I find that very hard to believe. Look at the benches here:
http://www.tomshardware.com/reviews/battlefield-3-graphics-performance,3063-12.html
..and that is for single-player. You may be able to set Ultra at your Res, but certainly not with MSAA and SSAO set to max.
Not to mention my comments about higher res and multi-monitor setups i.e at 2560, the 6970 is utterly owned.