1849 Views 2 Replies Latest reply: Jul 23, 2007 3:30 PM by Kappy
Mac Pro 2,1 series are the newer models with 8-cores whereas the Mac Pro 1,1 models only have 4-cores (not expandable.)
Essentially the first number in a Machine ID refers to the revision series. The second number refers to the generation within that series. So Mac Pro 2,1 means it's the second revision model and the first generation in that model series. More often than not the first number signifies a CPU version.