CPU, or Central Processing Unit, is that element of a home PC or a hosting server that executes the calculations. Every CPU runs at a particular speed and the bigger it is, the speedier everything will be processed, so when you host resource-demanding web apps on a web server, for instance, a quick processor will allow them to be performed more quickly, which will tremendously contribute to the whole user experience. The newer generations of CPUs have 2 and more cores, each one functioning at a certain speed to ensure a much better and faster performance. This kind of architecture permits the processor to manage numerous processes at one time or several cores to control a single process if it needs more computing power in order to be completed. Of course, additional factors including the amount of RAM or the connection a particular hosting server uses can also affect the efficiency of the sites hosted on it.