This is a huge disappointment! Even my old mid 2010 12-core is 2,93GHz. And the mid 2012 was upgraded to 3,06GHz. Is this some scheme by Apple, that later on they will just raise the clock speed and sell new machines? Even when they are exactly the same machines, except they just raised the clock speed and sell it as "new". If I buy the 2,7GHz 12-core now, I´m stuck with that clock speed. If I want a faster clock speed, I will have to give in to Apple´s dirty little scheme and buy a whole new machine, since the new Mac Pros are unupgradeable.