HW Monitor can measure the temperature and voltage of your PC. One of the most ideal hardware monitoring tools out there. HW Monitor | The Easy to Use CPU & Graphics Card Temp Monitoring Application To monitor your GPU temperature, you have to install the “GPU-Z” version of this application. Not only it gives you the details about the current temperature of all cores on your CPU but also gives you other insights about your hardware. We personally use this software for everyone who has zero knowledge of using monitoring software. No doubt, CPU-Z is one of the best tools out there to monitor your hardware specs and temperature. CPU-Z | The Best All-Time Hardware Monitor Tool Here are some of the highly rated temp monitor applications for PC hardware.