AMD GPU Tuner vs Green Curve

AMD GPU Tuner is a free Windows desktop and command-line project for monitoring and tuning AMD Radeon GPUs. Manual controls cover GPU voltage, core clocks, VRAM clock and timing, power limits, and driver fan curves. Monitoring can display core and memory clocks, temperature, hotspot, power, fan speed, voltage, load, and frame statistics when a compatible frame-data source is available. JSON profiles store supported driver settings and report which settings were applied or skipped on load. Automatic tuning compares candidate settings with a baseline while a workload runs, but the maker describes it as experimental. An adaptive governor can apply locally learned per-game settings and optionally run live tuning experiments. Benchmark tuning guides manually started 3DMark runs; the app does not install, purchase, or launch 3DMark automatically. The project requires 64-bit Windows 10 or 11, an AMD Radeon GPU, and an Adrenalin driver with the ADLX runtime; hardware tuning also requires an elevated terminal. The bridge selects one GPU and does not provide a selector or simultaneous multi-GPU tuning. Configuration, profiles, learned settings, telemetry, recovery journals, and diagnostic logs are stored locally. The MIT-licensed project is independent of AMD and Intel.

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.