Intel chips always load XP slower at startup. My Socket 478 Prescott with 2 gigs of Corsair runs the startup bar 12 times. My AMD 3500+ socket 939 on runs the windows startup bar once!! I believe it has to do wiht the way XP prefetches the progrms at OS load. AMD platforms load XP much faster but when XP is loaded I see no performance differences other than in gaming mood. It is a good question and I would like an answer myself!!
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.