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