Here’s a clear, informative text regarding a : Can You Upgrade the Processor in a Toshiba Satellite C640?
The Toshiba Satellite C640 typically features an Intel Core i3 or i5 (first-generation, Arrandale) processor, such as the i3-380M or i5-480M. These CPUs are type, meaning they are socketed (usually Socket G1 / rPGA988A ), not soldered. Therefore, a processor upgrade is technically possible.
