GPU-Z

GPU-Z is one of the most famous and trustworthy programs for monitoring the internal features of your PC. In spite of having different authors, GPU-Z shares the interface and main features of CPU-Z, only it focuses exclusively on your video card's specs. GPU-Z is a precise and accurate monitoring tool for Windows that allows you to see the internal features of your video card. Not only will you be able to view your card's model and its internal memory, but you'll also have access to other, more specific information. On one hand, you'll have all of the hardware's technical information: GPU model, integration technology, quantity and frequency of the internal memory, type of bus it’s connected to and bandwidth. On the other, you'll be able to see its internal status in real time, especially useful if you have some type of overclock on the card, so you can measure GPU temperature, frequency, fan speed, and voltage; you can also save all of this monitoring report in an external text file so you can analyze the data at a later time.