Eric S.
macrumors 68040
I am going with 99.9% certain that it uses the P9500. As you can see, it doesn't specifically say which processor it's using.
Hmm, if you had Windows XP installed it would tell you. 😉 For example on my Blackbook:
Intel(R) Core(TM)2 Duo CPU
T8300 @ 2.40GHz