Yep, clock speeds are no longer everything. A Core 2 Duo doing 12 flOPs per clock @ 2.4GHz will smoke a Pentium4 doing 6flOPs @ 3.2Ghz. So technically, a C2D is twice as fast as a P4 at the same speeds. Not to mention the enormous amount of L2 cache the C2D chips have that can speed up memory...