change the CPU

Hello, my name is Pantelis and I´ve got a VGN-TT11XN Sony Vaio. I have one question, Is it possible to change the CPU (processor ) from 1.2 GHz to a better processor ?

Thank you.

Judging by this page

Specifications for VGN-TT11XN/B

and then this page

Intel® Core™2 Duo Processor SU9300 (3M Cache, 1.20 GHz, 800 MHz FSB)

I would say your Sony VAIO uses BGA956.

Penryn-3M

In September 2009, Intel introduced new Consumer Ultra-Low Voltage processors based on Penryn-3M, as Celeron SU2xxx series, Pentium SU4xxx series and Core 2 Duo SU7xxx series, with 1, 2 and 3 MB of active L2 cache. Like the earlier Core 2 Duo SU9xxx series, they are always soldered on using a BGA956 package and have a TDP of only 10 W.

In other words your CPU is soldered on and does not use a socket design for interchangeable options.

Thank you cliffordcooley , you are very informative