sony vaio pcg-71712n CPU upgrade from Intel I5-2410M

[Starlingc]

Hello everyone, 
I am restoring an old notebook (sony vaio pcg-71712n)
Any idea which if can change the CPU and what is the fastest cpu this model support ? i think it has integrated GPU. and cpu now is Intel I5-2410M
here are screens from CPUZ. 

thanks a lot for your help!
enrico

[DeathBringer]

The fastest is i7-2640M.
+25%

[Starlingc]

The fastest is i7-2640M.
+25%

thanks!
I am going to try this and some more ram. 
thanks again