Currently Being ModeratedNov 10, 2012 10:02 PM (in response to Ronald.07)
Welcome to the Apple Support Communities
You can't replace it. The processor is soldered into the logic board, so you'll have to change this if you want an Intel Core i7
Currently Being ModeratedNov 11, 2012 3:42 AM (in response to Ronald.07)
Your only option is to sell your current computer and buy a new one that has the specifications that you want.