Max upgrade notebook today

Hello!

Can I install an Intel Core Duo T9800 processor instead of an Intel Core Duo T6570 processor? If yes, then you need to install RAM with the clock speed of the new processor (1066 MHz, instead of 800 MHz), la I think? And will such an upgrade work? And one more thing: how to increase the allowable amount of RAM from 4 GB to 6 GB? I live in Russia and I need help. If anyone can and wants to help, write to me to address email: salex27rus@gmail.com

Thank you.