Jun 20, 2010 So you need 2 new CPUs, and for a significant performance boost you need a good quad core. Haile gerima sankofa download music. Those sell at at bout 400-500 dollars (x 2). So lets say you may spend about 1000$ for an upgrade. If you sell your mac pro you will get almost the same amount, and adding the additional 1000$ for the CPU upgrade is almost a new mac pro.