FUD Zilla says the thermal design power (TDP) of Intel's upcoming 2.66GHz, 2.93GHz and 3.2GHz Core i7 processors will be 130W. The average power consumption will be lower, but the high TDP gives the processor a safe margin for the "Turbo Mode" which automatically overclocks cores.
At this time, Intel doesn’t want to discuss the clock speeds, but sources close to the company have indicated that a slower clock part, let’s say 2.66GHz Core i7, will have a lot more space for Turbo feature at 130W TDP than any other.
This is Intel playing it safe, as the actual TDP of the 2.66GHz part will be lower than 130W, but in case of automatic overclocking called Turbo, you might get close to 130W. Turbo will overclock your Nehalem CPU if your thermals are right and if there is a space for Turbo.