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Mx Power Gadget vs mactop: catalog facts
Mx Power Gadget	mactop
Free Free download.	Free Free and open source under the MIT licence.
macOS	macOS, Command line
Built specifically for Apple Silicon processors Real-time performance monitoring	Separate metrics for efficiency and performance cores Shows GPU usage and frequency, power draw and temperatures
Apple Silicon Macs only Requires macOS 14 or later	Only works on Apple Silicon Macs Terminal interface only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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