I find the benchmark graphs on http://www.apple.com/macbookpro/performance.html http://www.apple.com/macbookpro/performance.html frustrating. What is the baseli

I find the benchmark graphs on http://www.apple.com/macbookpro/performance.html http://www.apple.com/macbookpro/performance.html frustrating. What is the baseline Apple is comparing to? I have a MacBook Pro with a core 2 duo 2.53GHz processor. I am sure that the 2.2 GHz quad-core processor on the new MBPs is faster, but by how much. How do the processors stack up when running single treaded applications? I suppose I'll need to wait for the third party reviews.