Processing speed refers to the rate at which a computer or device can execute instructions and perform tasks. It is often measured in gigahertz (GHz) for CPUs, indicating how many billion cycles per second the processor can handle. Higher processing speeds generally lead to faster performance, allowing users to run applications, load files, and perform calculations more quickly. In addition to CPUs, other components like graphics processing units (GPUs) and solid-state drives (SSDs) also influence overall processing speeds. A faster GPU can enhance graphics rendering, while an SSD can significantly reduce data access times compared to traditional hard drives, contributing to a smoother user experience.