Yeah, I was thinking the same thing, given that I've problems with other games as well.
The campaign is amazing! I didn't like WoL's campaign that much because it was boring and honestly I just wanted it to end so I could move on with my life. This, on the other hand, is great. I'm interested in seeing how the story unfolds. I don't know, I think I prefer playing as the bad guy, haha.
Here's my contribution: http://img832.imageshack.us/img832/5595/4lr2.png
Sapphire HD 7950 Vapor-X tested on Battlefield 3 at max settings, at 1280x720. I tested it on the Rock And A Hard Place mission, on a segment of intense action (specifically after you destroy the BMP).
Tested both clocks separately. Stock speeds for core and memory clocks are 850 and 1250, respectively.
Core clock is stable at 1100 but becomes unstable at 1110.
Memory clock is stable at 1520 but becomes unstable at 1530 (1520 if paired with the core clock). It's stable at 1500 when paired with the core clock.
EDIT: After playing Battlefield 3 for a while with these settings, it crashed (specifically when you have to shoot down the plane). I set the core clock to 1050, just 50 MHz below the speed stated above and it's stable now.
EDIT #2: I also played Crysis (2007 game, old but very demanding) for about 5 hours and it didn't crash once. I can now confirm 1050 MHz is a stable speed.