A CPU (central processing unit) is the "brain" of a computer that allows it to perform tasks through applications and provides instructions that deliver information stored to RAM (random access memory) . A core is a physical device within a CPU that takes data from a thread (virtual components that deliver information to a CPU) and performs processing tasks. CPUs can have multiple cores, and the more cores a CPU has, the greater computational power it has.

The primary benefit of high core count processors is that they are able to complete multiple tasks at the same time, and they can switch from one program to the next with ease. When multiple cores work at the same time, they achieve a higher processing rate, which forms the foundation of high-performance computing (HPC) . Processors with multiple cores also help to increase performance when faced with multiple tasks and/or demanding workloads. This is accomplished by taking complex computations and breaking them into smaller pieces, maximizing efficiency and preventing overload.

On the other hand, low core count processors complete a limited number of tasks and consume less power, which helps to protect a computers parts and components from overheating, ensuring proper functionality. However, performance is severely limited in low core count processors, as the CPU has to take time to communicate with the RAM.

In summary, cores in a CPU allow for the processing of data and performing computational tasks. The more cores a CPU has, the greater its computational power, and it can complete multiple tasks at the same time. Multiple cores also help to increase performance when faced with multiple tasks and/or demanding workloads.