Hey guys.

I was just wondering about the wPrime performance of my i7-975
http://hwbot.org/result.do?resultId=878842
http://hwbot.org/result.do?resultId=878837

Now i also installed Vista and saw that its faster than my XP. But not only a bit.

Setup:
i7-975 @ ~4,3GHz
EVGA Classified 759
3x Kingston 1024MB DDR3 2000 9-9-9-27 2T @
9800GX2

wPrime32M XP: 6,3s
wPrime32M Vista: 5,7s

975 @ ~3,9GHz

wPrime 1024M XP: 3min 35s
wPrime 1024M Vista: 3min 15s


So what the hell Do you just use Vista or what is going on here? I also reinstalled both Windows but still this big difference. Compared to other benchers using WinXP mine is always ~0,3s slower wPrime 32M. Also no difference if BIOS is running @ stock or with my overclocking settings.

Help needed