AMD GPU Tuner vs LACT

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.

LACT is a free, MIT-licensed Linux tool for controlling and monitoring AMD, Nvidia, and Intel GPUs. It reports VBIOS, VRAM, hardware units, Resizable BAR status, and Vulkan features. Monitoring provides configurable historical charts for power, thermals, and frequency, plus throttling information and CSV export. Controls include power caps, AMD power states, GPU and VRAM clocks, and custom fan curves on AMD and Nvidia. Undervolting uses voltage offsets on AMD and VF curves on Nvidia. Profiles can activate according to running processes or gamemode status. A system service applies GPU configuration without depending on a graphical session and can run headless from a configuration file. LACT includes an OpenTelemetry metrics exporter and exposes a JSON API over a Unix socket or TCP. The TCP listener is disabled by default; remote TCP management has no authentication or encryption. Packages are listed for several Linux distributions, with Flatpak and Docker service-only options. Available controls vary by GPU generation, driver, and hardware.