Gainward ExperTool vs nvuv

Gainward ExperTool is a free Windows utility for tuning graphics-card performance and desktop management. Gainward positions its dedicated Expert Tool for overclocking. ExperTool II adds flexible fan curve control and a BIOS saving feature, and also offers LED lighting control for ARGB effects. Gainward says fans stop during multimedia or general workloads and start under heavier loads when GPU temperature exceeds 60°C. Download requirements depend on system architecture and Nvidia driver version: the 64-bit download is listed for Nvidia GPUs with driver 436.xx or newer, while 32-bit downloads specify drivers 415.xx or newer and 347.xx or newer. The listed 64-bit package is version 11.13, dated 2025-02-19, and is 16.5 MB. Its supported Windows versions are Windows 7 (64-bit), Windows 10 (64-bit), and Windows 11. Gainward was founded in 1984 and is headquartered in Taipei, Taiwan. Warranty and return handling goes through authorized distributors or the original store.

nvuv is a free Linux command-line utility for adjusting NVIDIA GPU power and clock behavior. It can set power limits, lock GPU or memory clock ranges, and apply offsets to either clock. On systems with several GPUs, the `-i GPU_INDEX` option chooses the device. The project describes nvuv as a thin wrapper around NVIDIA’s NVML library. Its indirect undervolting method locks the GPU’s maximum clock and applies a positive offset because direct voltage control is not exposed on Linux. The project says this can preserve roughly similar performance while lowering voltage and power draw, with possible reductions in temperature and fan noise. Settings may come from a TOML file, using `/etc/nvuv/nvuv.toml` by default. Applying, changing, or resetting settings requires root privileges. Changes do not survive reboot, resume, or driver reload unless the supplied systemd service reapplies them. That service can run at startup and after resume or driver reload. Downloads are linked through GitHub releases and an Arch User Repository package. nvuv uses Apache License 2.0 WITH Commons-Clause-1.0.