The Mac Pro is a workstation computer made by Apple Inc. It is part of the company's Apple Macintosh group of computers. Also, it is the fastest computer Apple sells. It runs on Intel Xeon microprocessors. It is like the Power Mac G5, which is the computer it replaced. The Mac Pro looks the same and the parts inside the computer can be changed the same, too. There are two other computers sold by Apple that are also called "desktop" computers. They are the iMac and Mac mini.