Mac Pro (Mid 2010 Model) :One 2.8/3.2 Ghz Quad-Core “Nehalem or one 3.33 Ghz 6-Core “Westmere” or two 2.4 GHz quad-core “Westmere” or two 2.66/2.93 GHz 6-Core “Westmere”; up to 32GB memory PC3-8500 RAM;