CPU, or Central Processing Unit, is that element of a computer system or a hosting server which runs each of the calculations. Every CPU operates at a specific speed and the higher it is, the faster everything shall be processed, so when you host resource-demanding web apps on a hosting server, for example, an effective processor will allow them to be executed more quickly, which will greatly contribute to the entire user experience. The more recent generations of CPUs have two and more cores, each one working at a certain speed to guarantee a superior and swifter performance. This kind of architecture enables the processor to handle a variety of processes all at once or several cores to address one process if it requires extra computing power to be completed. However, additional factors such as the amount of RAM or the connection a specific hosting server uses can also affect the performance of the websites hosted on it.