I have a Toshiba Satellite L645D. It comes with a AMD Turion II p520 dual-core processor 2.30 GHz and a ATI Mobility Radeon HD 4200, I would like to upgrade them both So i can have better gaming improvement. Any help would be welcomed and I don't know much about processors so whether 2.3 is good or not idk.
You can upgrade the CPU, but you must be careful and do some research first. You cannot upgrade the heatsink inside the laptop. If you install a CPU that produces too much heat, then it can kill your laptop.
Sorry, I can't be of much help since I never upgraded a laptop before except for add RAM and replacing a hard drive.