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CPU-Z vs CPU-X: catalog facts
CPU-Z	CPU-X
Free Freeware. The site is funded by advertising and donations, and a paid SDK exists for…	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, Android	Linux
Per-module memory SPD data, including timings, which is hard to find anywhere else Live per-core frequency and memory frequency readings	Offers graphical, terminal and report modes.
Closed source freeware; the website is ad-supported and asks you to allow ads Reports hardware facts rather than monitoring temperatures over time	Some hardware details require elevated access.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 22, 2026

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