The Core i5 is a computer processor, available as dual-core or quad-core. It can be used in both desktop and laptop. It is one of the three types of processors in the "i" series (also called the Intel Core family of processors).
The Core i5 processor is available in multiple speeds, ranging from 1.90 GHz up to 3.8 GHz. Core i5 processors are most often found as quad core, having four cores. However, a select few high-end Core i5 processors feature six cores.