Also see: How fast are the "Mid-2012" Mac Pro models compared to one another?. How fast are the "Mid-2012" Mac Pro models compared to the "Mid-2010" models replaced?. Are they actually faster?. It also supports "Hyper-Threading" -- which "allows two threads to run simultaneously on each core" (so Mac OS X recognizes twelve total cores on this model, six real and six virtual) -- and "Turbo Boost" -- which "automatically boosts the processor speed based on workload" (so if an application is only using one of the four cores it will automatically increase the speed of the core in use and turn off the unused cores), in this case up to 3.6 GHz.
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