CPU, or Central Processing Unit, is that element of a home PC or a server that carries out each of the calculations. Each CPU runs at a particular speed and the bigger it is, the swifter everything shall be processed, so if you host resource-demanding web apps on a web server, for example, a quick processor will enable them to be executed speedier, which will greatly contribute to the overall user experience. The more recent generations of CPUs have two and more cores, each one running at a certain speed to guarantee a much better and quicker performance. This sort of architecture allows the processor to handle numerous processes concurrently or a number of cores to manage one process if it needs more computing power to be completed. Naturally, other elements including the amount of RAM or the connection that a specific web server uses could also affect the efficiency of the websites hosted on it.