@Karl Agathon
Actually, I think the bottleneck could be your SSD itself rather than SATA 3GB/s (around 350 MB/sec) bandwidth.
I seem to have an unusable system (BSOD every couple of days with lost Bootmgr) with a beautiful 7.6 on CPU and 7.9 on everything else. I have a friend whose scores are much, much lower but aside from the "snappiness" courtesy of my SSD disk, I don't see much difference there.
Moral of the story, WEI is not really a good indicator so I wouldn't bother (even though I do understand the appeal of seeing all 7.9s there

).
Cheers...