I usually advise against upgrading laptop processors. For one, the current power set up, heat sink, fans, etc... are all calibrated to deal with the current processor. If you went with something more powerful, sure it'll fit, but it may have a higher TDP, which in turn leads to more heat. If the heat sink and fans cannot deal with it, you'll have a paper weight. It's not worth the headache. I'd save up and buy a new laptop.