text: can the processors on laptops be upgraded? i was interested in upgrading my dell inspiron 2200 from a pentium m processor to either an amd anthlon 64 or a dual core processor. is this even possible on laptops? any input is appreciated you cannot go from a intel to an amd, it is physically impossible in a laptop or a desktop.  the sockets are different. (for more info see the wikipedia link below.)  if you have a pentium m, then you have a motherboard with a cpu socket 479.  that socket can hold the following:   intel pentium m (900 mhz - 2.267 ghz) intel celeron m (800 mhz - 1.733 ghz) intel core duo (1.667 - 2.167 ghz) intel core solo (1.667 ghz) via c7-m (1,5 ghz and 1,8 ghz)  i think that the core duo t2700 (2.33 ghz, 31 w, fsb 667 mhz, dual-core) would be the best you can get.  but i would make sure to talk to dell to make sure you got something compatible with your system.  dell machines can be really tricky about that.