CPU, or Central Processing Unit, is that element of a computer or a web server which runs all of the calculations. Each CPU operates at a certain speed and the larger it is, the swifter everything will be processed, so in case you host resource-demanding web programs on a server, for example, a quick processor shall enable them to be performed faster, which will greatly contribute to the overall user experience. The newer generations of CPUs have 2 and more cores, each functioning at a particular speed to ensure a superior and speedier performance. This sort of architecture permits the processor to manage different processes all at once or a number of cores to control 1 process if it needs more computing power in order to be executed. However, other elements including the amount of RAM or the connection which a specific hosting server uses may also affect the overall performance of the websites hosted on it.