VR Zone has a lot of details about Intel's upcoming Harpertown and Wolfdale processors. The Harpertown is an upcoming 45nm quad-core processor and Wolfdale is its dual-core counterpart, both will arrive in the fourth quarter of this year.
All Harpertown processors sport 2 x 6MB of shared L2 cache with 1333FSB and are clocked above 2GHz comfortably. The fastest Harpertown, X5460 is clocked at 3.16GHz with 120W TDP while E54xx series are clocked between 2.33 to 3GHz with 80W TDP. Harpertown LV L5430 and L5410 are clocked at 2.66GHz and 2.33GHz respectively with 50W TDP. For Wolfdale-DP, Intel has only give clues to the highest and lowest speed where E52xx series are clocked between 1.86 to 3.33GHz at 65W TDP. Interestingly, there is also a low voltage Wolfdale-DP with an impressive 3.16GHz clock and 2 x 3MB shared L2 cache at a mere 40W TDP compared to the current Woodcrest LV 5148 with 2.33GHz and 2 x 2MB shared L2 cache.