C2D 6420 vs C2Q 6600 Quad Vs. Dual Comparison by Kristofer Brozio • February 4, 2008 C2D 6420 vs C2Q 6600 Quad Vs. Dual Comparison I recently upgraded my Core 2 Duo 6420 to a Core 2 Quad 6600 and of course I was very curious to check out the differences between them. So after doing…Read more