The latest Mac Pro “Nehalem” dual 2.93GHz Quad-Core system with 6GB of RAM and an ATI Radeon HD 4870 graphics card has gotten a Geekbench score of 17,665.
The previous top-of-the-line 3.2GHz 8-core Mac Pro only got a score as high as 11,030. To see pictures and read discussion on MacRumors, click here. To see the cumulative table of all Mac performance benchmarks as of January 2009, click here.
And if you want to buy one almost as fast, you can click here.