What is the fastest laptop processor readily available today?

EDIT:

After all that nonsence... AS of 2012 um... july 25

For the alienware m18x....

3rd Generation Intel® Core™ i7-3920XM (8MB Cache, up to 4.1GHz Overclocked*)

That would burn the whole battery in 1 hr so better have a desktop intead...

It would also cost 1.5k so better have the desktop....