You could change your M760 for an M780 (2.26GHz). But this is quite a lot of work, you will need additional equipment and the price for the CPU would double the value of your notebook. I don't think that it is worth the money for only 260MHz more.
I knew about the M780 processor and yes it seem like a waste of money and time buing a 226MHz faster CPU (I already now how to change the processor ) i was more interested in if it where possible to find a faster processor than that but I almost figured it out my self that this wasn't the case but thanks anyway