Is macOS 27 actually faster than macOS 26? In this video, I compare boot times, app launches, Final Cut Pro exports, benchmarks, RAM usage, temperatures, and overall responsiveness to see how Apple’s latest beta performs against macOS 26.
I also tested macOS 27 from an external SSD to keep my main installation safe. If you’re considering trying the beta, I’ve linked my full external installation guide below.
chapters:
0:00 – intro
0:15 – The setup
0:33 – boot speeds
0:54 – Idle usage and temps
1:40 – speedometer 3.1
2:09 – FCP export in 4k
2:41 – App launch tests
3:25 – Usage with apps open
3:44 – benchmarks
3:58 – UI tests
4:34 – Should you install?
4:47 – Installing macOS 27 the safe way
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