That's something I don't really understand. I got a 7.x for Graphics, CPU, etc. but just a 6.0 for the Harddisk-Performace although I use Cheetah 15K6 with a 512 MB Cache Adaptec. Exept some RAID-configurations this is the fastest HD-Solution You can buy (even faster than 90 % of the SSD). So I wonder about the performance measurement in Win7. Does anybody have a 7.x in HD-Performance and with which hardware ?