2.0GHz Core i7-920XM 8MB Cache ----> TurboBoost ----> 3.2GHz
1.73GHz Core i7-820QM 8MB Cache ----> TurboBoost ----> 3.06GHz
1.6GHz Core i7-720QM 6MB Cache ----> TurboBoost ----> 2.8GHz
Neatr future, a bunch of i3/i5 dual-core and i7 dual-core ultra-low voltage Arrandale's.
Next 5-10 years, checkout Larrabee, Sandy Bridge and Haswell.