MW2 with Xfire does not go well, with vsync ON the game stutters especially when going to edge of a map and turning with the mouse other than that with vsycn OFF the game just tears. Also when getting flashbanged the screen flickers/tears. However what I find very interesting is that when I disable CatA.I (disabling Xfire) using just one single 4870 chip on my 4870x2 and then using D3DOverrider the game runs at a silky smooth 60fps whereas before with other drivers I was getting horrible slowdowns from 60fps down to 45fps which you all know for an online game is terrible when trying to aim. Well I just played an 8v8 map on Estate the hardest map to run as its full of foliage and the game was stuck at 60fps only dipping to as low as 59fps even with loads of explosions going on and the flashbang bug is gone too. Now I can frag away on this game... a single 5870 is looking very tempting now, but I really want to hold out til fermi as it means lower prices.