What a difference a driver makes
I just got an NVIDIA update for a Windows 7 64-bit computer’s video card, via Windows Update. My computer’s video card performance went from a rating of 1.0 to 6.9. And the computer’s Base score, its overall rating, went from 1.0 to 5.9.
A system’s Base score is the lowest rating for any of the tested hardware devices.
The highest possible rating in Windows 7 Experience Index is 7.9. The highest possible rating in Vista is 5.9.
The Base score of 5.9 is limited by the primary hard drive, a 1TB Seagate 7200 RPM with a 32MB cache. I suspect if I replace that drive with a solid state drive (SSD) the computer’s , current 5.9 Base score would rise to 6.9, the video card’s current ratings.