Battlefield: Bad Company 2, released in March 2010 by Electronics Arts, is the most successful DirectX 11 title so far. Even though it contains a full single-player campaign during which the player has to work with a squad to secure a secret weapon, the game is most well known for its fast paced, exciting multiplayer squad action.
This is a taxing game at these settings, although by looking at the GTX580 and HD6990 performance you would be hard pressed to think so. Two HD6990's generate over 110 fps with the frame rate only dropping below 60 on one instance.