There's no question with the 2.4Ghz and 2.8Ghz model but I was wondering which CPU the new unibody MBP uses in the 2.53Ghz model. Intel has two Penryns at this frequency with exactly the same specs except for TDP, the T9400 at 35W and the P9500 at 25W. Performance-wise P9500 is slightly better and because of the lower TDP, is more energy efficient. So which one does the new MBP use? Anybody knows/mind doing a CPU-Z check? Also, are the 9400m and 9600m GT made using the newer 55nm technology? I'm just afraid that if it's still the old 65nm/80nm tech, the same packaging fault will come back. Does anybody know (with GPU-Z check)? Thanks a lot in advance.