If you attach some guesses at volume percentages for speed/ power on rev. F dual core parts or even single core, I would be happy to take a stab at what will happen with quad core. just because they can do it, does not mean they can or will do it in significant volume. Fill in blanks dual core: speed power percentage of output 2.4Ghz 68W ? 2.2Ghz 68W ? 2.2Ghz 68W ? 2.4Ghz higher? ? etc... --Alan