I have one Core 2 duo E6725(?)and one system running an AMD dual core of equivalent specs. The AMD system just seems to be faster than the Intel box, it boots up about 5 seconds faster and everything else just feels quicker, could just be me.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70