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LACT vs GPU-Z: catalog facts
LACT	GPU-Z
Free Free, with source code published on GitHub.	Free Freeware from TechPowerUp. The source is not published.
Linux, Command line	Windows
Supports AMD, Nvidia and Intel GPUs Graphical interface plus a CLI client	Reports adapter, GPU, display and detailed memory subsystem information A load test that verifies the PCI Express lane configuration actually in use
Linux only Changing GPU settings carries some hardware risk	Windows only Closed source freeware
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
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 September 21, 2026

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