The clock speed is the fastest rate at which computer instructions execute- that's assuming enough memory, and that the disk is not involved, either of which idles the CPU. Paying more for lower performance won't feel good, so which model should you choose, now that Apple offers models with single or dual CPU, and 4/6/8/12 CPU cores? The 'rev limit' - clock speed It all depends on your software and workflow. Even the 2.93GHz 12-core model might be slower than the 6-core 3.33GHz model. The penalty for choosing the wrong Mac Pro might be not only a higher price, but lower performance.įor most all users, the 8-core model at 2.4GHz will almost always be slower than the 6-core model at 3.33GHz. Since the CPU cannot be upgraded, understanding CPU performance is critical for making an investment in a Mac Pro. There are far more choices than Apple has ever offered before, and this leads to some confusion about which model is best. The August 2010 models offer 4/6/8/12 CPU cores at various clock speeds and widely varying list prices, ranging from $2499 to $5999 or more. Send Feedback Related: CPU cores, Mac Pro, Macs, memory, Photoshop, video

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