<ul data-eligibleForWebStory="true">A processor, or central processing unit (CPU), acts as the brain of a computer by performing calculations, running programs, and processing data.Key considerations when evaluating processors include clock speed, number of cores and threads, and architecture (e.g., ARM or x86).Clock speed, measured in gigahertz (GHz), indicates how fast a processor can execute instructions.More cores and threads can enhance multitasking and performance in multi-threaded applications.Architecture choice is crucial to align with specific computing needs.For gamers, the processor is a critical component that significantly impacts gaming performance.Although graphics cards receive attention, the CPU is vital for ensuring smooth gameplay and high frame rates.