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CoreFreq vs Intel Performance Counter Monitor: catalog facts
CoreFreq	Intel Performance Counter Monitor
Free Free to build and use from its public GitHub repository.	Free Free, with source published on GitHub.
Linux, Command line	Windows, Linux, Command line
Very detailed per-core frequency, C-state and power data Broad Intel and AMD processor support	Exposes memory bandwidth and power counters Maintained by Intel
Requires loading a kernel module Linux only and more technical than typical monitors	Aimed at Intel processors Needs low-level hardware access and technical knowledge
Downloadable app	Downloadable app
Open source	Open 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 October 1, 2026

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