The processor or Central Processing Unit (CPU) is the brain of the computer. It accounts for the vast majority of calculations that take place on a PC and make it work. Intel and AMD are the major manufacturers on the market. What you prefer is a matter of taste! AMD is generally good on the media, while Intel is somewhat more powerful. We have CPU’s with different clock speeds and internal memory in all price ranges, find the one that is compatible with your motherboard and your socket.