github.com/ProjectPhysX/hw-smi - A minimal, cross-compatible CPU/GPU telemetry monitor with accurate data directly from vendor APIs and beautiful ASCII visualization
How much VRAM bandwidth does an application or a game pull? Is the traffic over PCIe a bottleneck? What's the CPU/GPU load, RAM/VRAM occupation, temperatures, power draw, clock frequencies? hw-smi works with all CPUs and all Nvidia/AMD/Intel GPUs, on both Windows and Linux.
There are lots of cool hardware monitoring tools already - but they all are either OS-specific, only for CPU or GPU, only for one particular vendor's GPUs, and none of them tell you the VRAM/PCIe bandwidth to give clues about application bottlenecks. 2 years ago I thought to myself: I can do this better. Now I share this powerful tool with the world, for free. Have fun!