A quad core processor is a computer chip that has four cores inside of it. These cores perform tasks, such as moving, adding and branching various forms of data and information that go through electronic devices, such as computers and tablets.
An individual core can run multiple processes and it is responsible for running the programs on all devices. With multiple cores, programs run faster and provide less of a burden on the computer. The way that a quad core processor can perform these tasks is through parallel processing, which is when the chip divides the workload for running a program across multiple cores.
It is a common assumption that quad core processors work twice as fast as dual core processors and four times as fast as single-core processors, but this is not necessarily the case. The ability of a processor to perform is reliant on what sort of programs and tasks a user regularly does on their device. This is important to note since not all programs can run with parallel processing, which takes away a big benefit of quad core processors. In addition, the ability of a processor to perform is reliant on its compatibility with other parts in the device.