So I am upgrading my computer's MB,processor, ram etc... and while I was not going to upgrade my 4850x2 since I have no problems with it I could not help notice how inexpensive the 5770 is. The 5800 series is still out of my range right now but was thinking of buying a single 5770 and was wondering if anyone could tell me if the 5770 is a faster card then the 4850 x2? Obviously the 5770 has directx11 support but I just was really curious if it was a faster card and if I would get improved peformance.