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My fully-loaded 2019 16-inch MacBook feels VERY underpowered actually - once you try to use all the cores (multiple compilation threads, parallel tests with multiple docker images running), it goes into what I would call a "heat shock". I suspect throttling kicks in and cpu charts in Activity Monitor become close-to-death flatlines. Oh, and the fan noise becomes non-ignorable too.

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Yeah, full utilization leads to throttling, guaranteed. Although apparently it can get much worse than what I've had, down to like 1.0 Ghz.

I've also had issues with the laptop waking from sleep, where it'd either hang for up to minutes, or just outright kernel panic. Big Sur seems to have fixed the kernel panics but waking from sleep still feels really slow.

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