Applications designed to track the operational heat levels of central processing units (CPUs) and graphics processing units (GPUs) provide real-time thermal data. These tools access hardware sensors embedded within the components to display current temperatures, often in Celsius or Fahrenheit, and log these values over time. Examples include utilities that overlay temperature readings directly onto gameplay displays or generate graphs of thermal performance under varying workloads.
Maintaining optimal thermal conditions is crucial for system stability and longevity. Excessive heat can lead to performance throttling, component degradation, and even permanent damage. Monitoring these parameters allows users to proactively address potential cooling issues, such as insufficient airflow, failing fans, or inadequate thermal paste application. Historically, such monitoring was primarily the domain of overclockers and system builders, but now it is increasingly relevant for general users concerned with maintaining optimal system health and performance.