I run eyefinity with a 6990+6970 tifire combo. I love it. But it has it's problems. DVS20 summed it up quite nice!
Now though, ATI have solved the stuttering in BF3 with crossfire/trifire and I now play with eyefinity. WOW! I mean, just WOW! I am so glad that I went down this route
Crossfire isn't a massive problem. I really cannot understand why people don't like it. Issues and modding is the reason we buy PCs!![]()
I nearly went down the 5970+5870 route but i find it seems to be more problematic than using matching cards.