CPU, or Central Processing Unit, is that element of a computer or a web server which carries out each of the calculations. Each and every CPU operates at a certain speed and the higher it is, the swifter everything will be processed, so when you host resource-demanding web programs on a hosting server, for example, an effective processor will allow them to be executed speedier, which will drastically contribute to the entire user experience. The current generations of CPUs have 2 and more cores, each functioning at a specific speed to ensure a better and swifter performance. This kind of architecture enables the processor to handle different processes all at once or several cores to address 1 process if it requires more computing power to be carried out. Naturally, other variables such as the amount of RAM or the connection which a certain hosting server uses may also affect the efficiency of the websites hosted on it.