CPU, or Central Processing Unit, is that element of a personal computer or a server which carries out all of the calculations. Each and every CPU functions at a specific speed and the larger it is, the swifter everything shall be processed, so when you host resource-demanding web apps on a web server, for example, an effective processor shall allow them to be performed more quickly, which will drastically contribute to the entire user experience. The newer generations of CPUs have 2 and more cores, each one running at a specific speed to ensure a much better and swifter performance. This kind of architecture permits the processor to handle various processes all at once or a number of cores to handle one process if it requires additional computing power to be executed. However, additional factors like the amount of RAM or the connection a specific web server uses can also affect the overall performance of the sites hosted on it.