Green Curve
github.com
What it is
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.
Spec sheet
- Purpose
- Green Curve is an open-source NVIDIA GPU utility for tuning voltage/frequency curves, clock offsets, power limits, and fan curves.Read 30 Sep 2026 · github.com
- 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.Read 29 Sep 2026 · github.com
- Integrations
- The application uses NVAPI and NVML interfaces from the locally installed NVIDIA driver and does not bundle proprietary driver binaries.Read 29 Sep 2026 · github.com
- Security
- The project says it has no telemetry, analytics, cloud tracking, or remote error reporting; its optional GitHub release check sends no hardware information, profiles, or settings.Read 29 Sep 2026 · github.com
- 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.Read 30 Sep 2026 · github.com
- License
- Green Curve is licensed under the MIT License and is described as independent of NVIDIA.Read 29 Sep 2026 · github.com
- 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.Read 29 Sep 2026 · github.com
- Automation
- Built-in CLI commands support hardware probing, profile switching, and live-state output in text or JSON.Read 29 Sep 2026 · github.com
- Build requirement
- Building Green Curve requires Python 3.10 or later.Read 30 Sep 2026 · github.com
- CLI
- Built-in CLI commands support hardware probing, profile switching, and live-state output, including JSON output.Read 30 Sep 2026 · github.com
- Compatibility checks
- The read-only self-test reports driver and VF-curve readback, memory topology, and control-domain availability.Read 29 Sep 2026 · github.com
- Curve and clock controls
- It can inspect and edit live VF curves, clock offsets, effective VRAM offsets, and power target limits.Read 29 Sep 2026 · github.com
- 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.Read 30 Sep 2026 · github.com
- Driver integration
- Green Curve dynamically loads NVAPI and NVML from the locally installed NVIDIA driver and does not bundle proprietary driver binaries.Read 30 Sep 2026 · github.com
- Fan control
- Fan modes include driver auto, fixed percentage, and custom temperature curves with up to eight points, configurable hysteresis, and polling intervals.Read 29 Sep 2026 · github.com
- GPU support
- It supports GeForce GPUs from Pascal through Blackwell, with a best-effort fallback backend for future architectures.Read 29 Sep 2026 · github.com
- Interface
- It provides a native Win32 GUI on Windows and a keyboard- and mouse-navigable terminal UI on Linux.Read 30 Sep 2026 · github.com
- 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.Read 30 Sep 2026 · github.com
- 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.Read 30 Sep 2026 · github.com
- Profiles
- It includes five saved profile slots per user, global hotkey switching, and automatic profile switching based on the foreground application.Read 30 Sep 2026 · github.com
- Security architecture
- A background service handles hardware control while the GUI and TUI run unprivileged, communicating through a local named pipe on Windows or restricted Unix socket on Linux.Read 30 Sep 2026 · github.com
- Support limits
- Windows x64 and Linux x64 are validated on real NVIDIA hardware; Windows arm64 and Linux arm64 are compile targets without completed live hardware validation.Read 29 Sep 2026 · github.com
- Supported GPUs
- It supports GeForce GPUs based on Pascal, Turing, Ampere, Lovelace, and Blackwell, with a best-effort fallback for future architectures.Read 30 Sep 2026 · github.com
- Tuning features
- Users can edit live VF curves, set core and VRAM offsets and power targets, and choose driver-auto, fixed-speed, or custom fan control.Read 30 Sep 2026 · github.com
- Update verification
- The optional updater verifies an ECDSA P-256 signed release manifest with file sizes and SHA-256 hashes before downloading files, and updates require user consent.Read 30 Sep 2026 · github.com
- Updates
- The optional updater verifies signed release manifests, and updates are installed only after the user consents.Read 29 Sep 2026 · github.com
Strong points and limits
Strong points
- Supports GeForce architectures from Pascal through Blackwell
- Offers five saved profiles and automatic switching
- Includes GUI on Windows and terminal UI on Linux
- Provides CLI output in text or JSON
Limits
- Tuning can cause instability or hardware damage
- ARM64 targets lack completed live hardware validation
- Requires an NVIDIA GeForce GPU
Who it suits
Green Curve suits users tuning GeForce clocks, voltage curves, power limits or fan behavior on Windows or Linux. It is intended for users prepared for the stated instability and hardware-damage risks.
Verdict
Green Curve provides detailed GPU, fan and profile controls for NVIDIA GeForce systems, with Windows and Linux interfaces. The project explicitly warns of tuning risks, and its ARM64 targets have not completed live hardware validation.
Where Specifiction places it
- GPU Overclocking Software#12 of 197.4
- GPU Tuning Software#11 of 167.5