Looks to me like Crossfire scales fine - see here:



I'll need to make up my mind as to P45 vs X38 soon - i hope there are more reviews of what this can do in CF and if the tweaktown review was indeed correct in stating that bandwidth heavy games, like Crysis, need more than simple 8x PCIe 2.0 slots. I dont care about the gap over 1920x1200, cause as i said, i have a 1440x900 monitor...