3GHz Mac Pro Benchmarks

«Because processors represent just one piece of the performance puzzle, we found that the 3GHz machine posted an improvement over the 2.66GHz Mac Pro of about 5 to 6 percent on most tests, even though the 3GHz chips have a 13 percent faster clock speed. With all of our Mac Pro systems sporting the same drives, bus speeds, memory size, and graphics cards, only CPU-intensive tests like our Cinema 4D render times approached that 13 percent improvement. The 3GHz beat the 2.66GHz model in all tests, but usually just by a few seconds. That’s an important consideration for users contemplating paying the extra $800 above the 2.66GHz Mac Pro’s $2,499 asking price.» Macworld.