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LACT vs Nvidia System Monitor: catalog facts
LACT	Nvidia System Monitor
Free Free, with source code published on GitHub.	Free Free and open source under the MIT license.
Linux, Command line	Linux
Supports AMD, Nvidia and Intel GPUs Graphical interface plus a CLI client	Graphical view of Nvidia GPU usage on Linux Lightweight Qt application
Linux only Changing GPU settings carries some hardware risk	Only works with Nvidia cards and requires nvidia-smi Linux only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.