simple-nvidia-undervolt

A small Windows command-line alternative to MSI Afterburner for overclocking or undervolting an NVIDIA GPU. It talks to the driver directly — no background process — and caps voltage by flattening the V/F curve.

Overclocking/undervolting shouldn't mean dragging points around a curve editor. Only the top segment usually matters — the max voltage you allow and the clock you run there — because that's where the card sits under load, and it sets your peak framerate. To simplify, you can just set your desired voltage and frequency pair with this tool. To skip manual investigation of tuning options, the tool also offers ready-made profiles.