Meh, at the end of the day, even if those scores are accurate(might be) the biggest jumps, as in the 100-3000% jumps all scream of "our previous card didn't have enough memory for this resolution before" type performance increases. Take them out and it looks less impressive, and frankly look at the 1920x1200 scores and in most games at the moment the 9800gtx is fine enough, and mostly except in Crysis which I'll probably never play again, theres not going to be a feelable difference in most games. maybe some 8xaa over 2 or 4x, but AA gives ever decreasing IQ increase, 2xaa has the biggest effect.
But again, for 1-2 games that will feel noticeably different do I want to spend, what, maybe £400+, when i can have even if only 75/80% of the performance, for £180-220 from ATi with drivers I trust.
I just don't care about speed, i care about price/performance ratio but only to a certain point. If i can't get playable performance on Crysis, but everything else rocks along at 90fps, I don't care, for Crysis maybe the £400 280 might beat the 9800gtx on price performance, but I'd still buy a 9800gtx out of the two for £150.