The significance of the gigahertz (GHz) measurement lies in its role as a unit of frequency that quantifies the speed of computer processors or other electronic systems. One gigahertz equates to one billion cycles per second, indicating how many instructions a processor can execute in that time. A higher GHz rating generally translates to improved performance and faster processing capabilities. However, it’s essential to consider other factors, such as core count and architecture, as these also significantly influence overall processing power and system efficiency.