By the way, here is a slightly faster model of MacBook compared to the bench previously posted.
http://db.xbench.com/merge.xhtml?doc1=371559&doc2=369120
There is not enough difference between the two to account for one having two CPUs as far as I am concerned.

Aside from that XBench has not been updated in what? years? and even then it was not the greatest of tests. I would vote for a GeekBench test actually.