LOL....Iracing's not even out yet, I'm on invite only testing at the minute.....it butchers my 8800 with only 4xAA. MSTS is 6 years old, and decimates my sig-rig, and Race07 is under 1 year old.
Bear in mind though, that there is a potential (by means of precedent set by previous xfire/sli benches) for games that do not support xfire to run much worse than they would on a single gpu solution.
Talk about sour grapes, "if my card doesn't support it, if it's not on this tiny list, it's crap" ROFLMAO.
In my case, the x2 would be a total scam, a complete waste of cash and power. While I may have some unique requirements for my driving game obsession (huge amounts of AA, and flatly even framerates), there may well be others who will think they are buying a card that's nearly twice what the 280 can do....only to be broken hearted.
I'm more annoyed than anything, ATI lied through their teeth about it not being xfire.