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SPECIFICTION
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LACT

github.com

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Spec score 7.6 #10 of 19 in GPU Overclocking Software

What it is

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.

Spec sheet

Purpose
LACT lets users control AMD, Nvidia, or Intel GPUs on Linux.Read 4 Oct 2026 · github.com
API
The daemon exposes a JSON API over a Unix socket or TCP, and the TCP listener is disabled by default for security reasons.Read 4 Oct 2026 · github.com
Maker
The repository identifies Ilya Zlobintsev as its owner and describes LACT as a Linux GPU Configuration And Monitoring Tool.Read 4 Oct 2026 · github.com
Background service
GPU configuration runs through a system service that does not depend on a graphical session, and the service can run headless from a config file.Read 4 Oct 2026 · github.com
Configuration
It supports power caps, AMD power states, custom fan curves on AMD and Nvidia, and GPU or VRAM clock configuration.Read 4 Oct 2026 · github.com
Configuration safeguard
API configuration changes require confirmation or are automatically reverted after a short period, five seconds by default.Read 4 Oct 2026 · github.com
GPU information
It reports GPU details such as VBIOS, VRAM, hardware units, Resizable BAR status, and Vulkan features.Read 4 Oct 2026 · github.com
Hardware support
The project documents AMD, Nvidia, and Intel GPU support, with available controls varying by GPU generation, driver, and hardware.Read 4 Oct 2026 · github.com
Installation
The project lists packages or installation options for distributions including Arch, Debian/Ubuntu, Fedora, Gentoo, openSUSE, NixOS, and Solus, plus Flatpak and Docker service-only installation.Read 4 Oct 2026 · github.com
Metrics integration
LACT includes an OpenTelemetry metrics exporter.Read 4 Oct 2026 · github.com
Monitoring
It provides configurable historical charts for power, thermals, and frequency, throttling information, and CSV export.Read 4 Oct 2026 · github.com
Profiles
Profiles can activate automatically based on running processes or gamemode status.Read 4 Oct 2026 · github.com
Remote management security
The README says remote TCP management has no authentication or encryption and should be used only on trusted networks or with appropriate firewall rules.Read 4 Oct 2026 · github.com
Undervolting
GPU undervolting is available through voltage offsets on AMD and VF curves on Nvidia.Read 4 Oct 2026 · github.com

Plans and prices

LACT Free Linux GPU control and monitoring · MIT-licensed Read 4 Oct 2026 · github.com

Every LACT plan and price →

Strong points and limits

Strong points

  • Supports AMD, Nvidia, and Intel GPUs
  • Historical charts include power, thermals, and frequency
  • Profiles can activate from processes or gamemode
  • Runs as a system service without a graphical session
  • Offers Unix-socket and TCP JSON APIs

Limits

  • Available controls vary by GPU generation and hardware
  • Remote TCP management lacks authentication and encryption
  • TCP listener is disabled by default
  • Linux is the listed operating system

Who it suits

LACT suits Linux users managing supported AMD, Nvidia, or Intel GPUs who need monitoring, tuning profiles, fan curves, power controls, or headless configuration. It also fits setups using API or OpenTelemetry metrics.

Verdict

LACT combines multi-vendor GPU monitoring with tuning, profiles, metrics export, and service-based operation on Linux. Remote API security and hardware-dependent controls deserve attention before deployment.

Where Specifiction places it

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