> The performance is the main difference among the T and P series. The P 
> series are more energy efficent, have a faster (1,066 MHz) FSB, and are 
> mostly part of the Centrino 2 line. The T series use 10 watts more of 
> power and have a slower (667-800 MHz) FSB.

na tai kad ir Txxx su 1,066MHz FSB prikepta i valias:
http://www.intel.com/products/processor/core2duo/mobile/specifications.htm