NVIDIA GPU Temp
NVIDIA GPU Temp is a sidebar gadget, view you current GPU temperature, display the GPU Temperature for your nVidia graphics card.
The gadget needs now so no auxiliary tools, such as N-Tune, Speedfan etc. more and reads the temperature directly from the NVIDIA driver. The temperature bar would have to accommodate the gadget can still look very cluttered and is thus fallen victim to the red pen.
The license of this software is Freeware, you can free download and free use this diagnostic software.