GPU Temp is a free software that can monitor the core temperature of graphics card in your PC, it will display all temperature data in the system tray, and real-time update, you can know the current graphics card temperature at a glance. It can also start with the Windows system. For supported graphics cards, the details will be updated on www.gputemp.com, it should be able to work with most of the latest graphics cards.

The license of this software is Freeware, you can free download and free use this diagnostic software.