GPUMonitor-Qt5
GPUMonitor is written in C++/Qt5 and is used to display NVIDIA GPUs' information, including device memory usage, GPU utilization, power and temperature.
These status can also be seen in the system tray and right-click menu.
These useful information of GPU comes from 'nvidia-smi' command which is opened by popen() function. So, it does NOT support Intel and AMD graphics cards.