Green Curve vs NVIDIA_OC Daemon

Green Curve is a free, open-source utility for adjusting NVIDIA GeForce GPU behavior on Windows and Linux. It can inspect and edit live voltage/frequency curves, core and VRAM offsets, power targets, and fan settings. Supported GeForce architectures run from Pascal through Blackwell, with a best-effort fallback for future architectures. Users can save five profiles, switch them with global hotkeys, or switch automatically based on the foreground application. Fan options include driver auto, fixed speed, and temperature curves with up to eight points. A command-line interface supports hardware probing, profile changes and live-state output in text or JSON. Windows has a native GUI; Linux has a keyboard- and mouse-navigable terminal UI. The application loads NVAPI and NVML from the installed NVIDIA driver rather than bundling proprietary driver binaries. The project states it has no telemetry, analytics, cloud tracking or remote error reporting. Windows x64 and Linux x64 are validated on NVIDIA hardware; ARM64 platforms are compile targets without completed live hardware validation. The project warns that tuning may cause instability or hardware damage.

NVIDIA_OC Daemon is a Linux daemon that applies NVIDIA GPU overclocking settings through NVML. It is intended for systems where X.Org Coolbits tools such as GreenWithEnvy or nvidia-settings are unavailable or undesirable, including Wayland setups. The daemon reads TOML settings from /etc/nvidia_oc/config for GPU clock offsets, memory clock offsets, and power limits, with controls available per device. On first run, it creates the configuration file from currently reported GPU settings. It watches /etc/nvidia_oc recursively and reloads changed configuration after a five-second debounce. Logs go to the terminal and to demon.log in the process working directory. The software requires Linux, a supported NVIDIA GPU, and a driver exposing NVML as libnvidia-ml.so. Building requires a Rust toolchain; creating configuration or applying settings requires root or equivalent permissions. Some laptop GPUs or driver and device combinations may not expose power-limit operations. The repository does not include a systemd unit. The project warns that overclocking and power-limit changes can crash systems, damage hardware, void warranties, or make a machine unbootable.