the biggest thing for windows is seek time.
Spindal drives will range from 5ms to 10ms in seek time.
Most SSD's are under 1ms in seek time. (your vertex is 0.1ms seek time)
Below is my PC
Left is a single one of my Vertex 4 SSD's
Right is 3x WD 1tb Black Edition drives in RAID 0http://ocau.com/pix/ngvpz