Hmmm, no different.
Crysis in single screen hitting about 50fps which was lower like I said and in Crossfire 5760x1080 it's just woeful, constant stuttering. I have ULPS disabled.
Last time I ran Crysis (6000x1200) I got pretty good performance, can't remember the FPS but it was smooth. CPU isn't overclocked, didn't disable any cores - GPUs weren't 100% use
Admittedly I wasn't running AAx8, which would probably do it. That seems like ridiculous overkill on a game which doesn't work too well with AA at all (I remember being advised to use the console command to activate its implementation of edge-detect AAx4 so that foliage looked its best).