New Yorkfield and Wolfdale steppings coming
... E0 is not just a yield optimization, but it adds a couple of power saving states, along with two new instructions. E0 processors will support C2E, Extended Stop Grant State; C3, Deep Sleep State; and C4, Deeper Sleep State, on top of the already existing states ... Wolfdale will be updated from M0 to R0 stepping, with the equivalent changes.
