I know the 4870x2 isn't out yet but i've heard it will help with scale 15% better than two 4870's in xfire, however, does anyone know how it would scale with another 4870? The 4870 i'm planning on buying is 512mb while i believe the 4870x2 is suppose to have 2GB of memory, would the 4870 bottleneck the x2 and lower its memory use to only 512mb? I saw something about that in the SLI faq and i'm somewhat worried right now becuase i want to play all the newest games on 1900x1200 res with max settings and all eye candy turned on. Yes i know the 4870x2 isn't released yet but does anyone have articles or info describing how it would scale when it comes paired with the 4870 that is currently out?