here were my results... Mind you guys these are ati runs on stock air... I have the screenshots but theyre at home.... I have no nvidia cards so this is all i can offer, not to mention i had a 4870 die shortly after :(
Multi card: and i was at 4199 mhz but 3d01 does something funny when you lower the multi
http://service.futuremark.com/compare?2k1=9504824
Single card:
http://service.futuremark.com/compare?2k1=9504826