a free hardware monitor for Windows, you can see your CPU/GPU/MB/HDD/RAM state in desktop or overclock your GPU, control fans, AgaueEye also support in-game overlay for popular games, so you can monitor the hardware state in games(over 3600 games supported now), then inspect the performance with analysis report.

Via https://www.ghacks.net/2019/12/13/agaueeye-is-a-free-hardware-monitoring-tool-that-displays-an-overlay-when-gaming/