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Green Curve
What it is
Green Curve is a free, open-source utility for adjusting NVIDIA GeForce GPU settings on Windows and Linux. It can inspect and change live voltage/frequency curves, core and VRAM offsets, and power targets. Fan settings include driver-managed automatic mode, fixed speed, and custom temperature curves with up to eight points. Users can save five profiles, switch them with global hotkeys, or set automatic switching based on the foreground application. Built-in command-line controls support hardware checks, profile changes, and live-state output in text or JSON. Windows provides a native graphical interface; Linux offers a terminal interface navigable by keyboard and mouse. Green Curve loads NVAPI and NVML from the installed NVIDIA driver rather than bundling proprietary driver files. The project states that it has no telemetry, analytics, cloud tracking, or remote error reporting. Real-hardware validation is listed for Windows x64 and Linux x64; ARM64 platforms are compile targets without completed live hardware validation. The project warns that GPU tuning can cause instability or hardware damage.
For and against
For
- Supports GeForce architectures from Pascal through Blackwell
- Provides five profiles and automatic application-based switching
- Fan curves allow up to eight temperature points
- Includes CLI hardware probing and JSON live-state output
Against
- ARM64 targets lack completed live hardware validation
- GPU tuning can cause instability or hardware damage
- Building requires Python 3.10 or later
The verdict
Green Curve offers direct GPU curve, power, and fan controls, plus profiles and command-line tools. Its hardware validation is limited to Windows x64 and Linux x64, and tuning carries a stated risk of instability or damage.
Who it suits
Green Curve suits GeForce owners who want to adjust clocks, voltage curves, power limits, or fan behavior. It is intended for users comfortable with tuning risks and is validated on NVIDIA hardware for Windows x64 and Linux x64.
On the record
- Architecture
- An unprivileged GUI or TUI client communicates with an elevated background service through a local named pipe on Windows or a restricted Unix domain socket on Linux.github.com · read 29 Sep 2026
- Automation
- Built-in CLI commands support hardware probing, profile switching, and live-state output in text or JSON.github.com · read 29 Sep 2026
- Build requirement
- Building Green Curve requires Python 3.10 or later.github.com · read 30 Sep 2026
- CLI
- Built-in CLI commands support hardware probing, profile switching, and live-state output, including JSON output.github.com · read 30 Sep 2026
- Compatibility checks
- The read-only self-test reports driver and VF-curve readback, memory topology, and control-domain availability.github.com · read 29 Sep 2026
- Curve and clock controls
- It can inspect and edit live VF curves, clock offsets, effective VRAM offsets, and power target limits.github.com · read 29 Sep 2026
- Downloads
- The maker offers Windows setup installers and portable archives, Linux archives and Arch Linux packages, and publishes SHA-256 files and GitHub build-provenance attestations for program packages.github.com · read 30 Sep 2026
- Driver integration
- Green Curve dynamically loads NVAPI and NVML from the locally installed NVIDIA driver and does not bundle proprietary driver binaries.github.com · read 30 Sep 2026
- Fan control
- Fan modes include driver auto, fixed percentage, and custom temperature curves with up to eight points, configurable hysteresis, and polling intervals.github.com · read 29 Sep 2026
- GPU support
- It supports GeForce GPUs from Pascal through Blackwell, with a best-effort fallback backend for future architectures.github.com · read 29 Sep 2026
- Integrations
- The application uses NVAPI and NVML interfaces from the locally installed NVIDIA driver and does not bundle proprietary driver binaries.github.com · read 29 Sep 2026
- Intended users
- The project is for users tuning GeForce GPU clocks, voltage curves, power limits, or fan behavior; the README warns that tuning can cause instability or hardware damage.github.com · read 29 Sep 2026
- Interface
- It provides a native Win32 GUI on Windows and a keyboard- and mouse-navigable terminal UI on Linux.github.com · read 30 Sep 2026
- License
- Green Curve is licensed under the MIT License and is described as independent of NVIDIA.github.com · read 29 Sep 2026
- License and risk
- The project is MIT-licensed and warns that changing GPU clocks, voltage, power, or fan speeds can cause instability, reduced hardware lifespan, or hardware damage.github.com · read 30 Sep 2026
- Platform validation
- Windows x64 and Linux x64 are validated on real NVIDIA hardware; Windows arm64 and Linux arm64 are compile targets without completed live hardware validation.github.com · read 30 Sep 2026
- Privacy
- The project states that it has no telemetry, analytics, cloud tracking, or remote error reporting; its optional GitHub release check sends no hardware information, profiles, or settings.github.com · read 30 Sep 2026
- Profiles
- It includes five saved profile slots per user, global hotkey switching, and automatic profile switching based on the foreground application.github.com · read 30 Sep 2026
