A roadmap leak on Friday has pointed to Intel planning a refresh of at least its mid-range notebook processors in the fall. At least one chip, the Core i5 580M, is due to take over from the existing 540M and would step up from the earlier 2.53GHz to 2.66GHz. While it would still use the same 35W of power, its Turbo Boost would scale significantly higher (from 3.06GHz to 3.33GHz) and would be matched by a faster 766MHz integrated graphics core versus the older 500MHz.