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A comment on MacBook Pro 14-inch and MacBook Pro 16-inch. Parent comment

Re:MacBook Pro 14-inch and MacBook Pro 16-inch by downWidOutaFite on Monday October 18, 2021 @03:05PM (#28910036)
Yea it's especially common when running external monitors. The conspiracy-minded would say Apple wanted to leave a reason for MBP buyers to upgrade to M1 laptops.
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Re:MacBook Pro 14-inch and MacBook Pro 16-inch by awill on Monday October 18, 2021 @03:11PM (#28910125)
Using any external monitor requires turning on the discrete GPU. I'm sure that's a large part of the problem.
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Re:MacBook Pro 14-inch and MacBook Pro 16-inch by muro on Monday October 18, 2021 @06:08PM (#28912438)
Why would that be required? The embedded GPU should be good enough for many things.
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Re:MacBook Pro 14-inch and MacBook Pro 16-inch by cassianoleal on Monday October 18, 2021 @06:15PM (#28912509)
Poor drivers. The same reason why the discrete GPU pulls around 20W just for being on with an external screen, even if the screen is black. Apparently not an issue:

    * in clamshell mode;
    * on Windows via BootCamp.
According to some reports in the MacRumours forum [0] this is fixed in Monterey.

[0] https://forums.macrumors.com/threads/16-is-hot-noisy-with-an...

Edit: Not quite a fix. Apparently they introduced a Low Power Mode that helps bring wattage and temps down by essentially preemptively throttling CPU and GPU or something like that.

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Re:MacBook Pro 14-inch and MacBook Pro 16-inch by Aeolun on Monday October 18, 2021 @08:07PM (#28913442)
> by essentially preemptively throttling CPU and GPU

Not really a fix then. That may prevent hurting your machine but it’s still not running at optimal performance.

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Re:MacBook Pro 14-inch and MacBook Pro 16-inch by cassianoleal on Tuesday October 19, 2021 @09:56AM (#28918108)
Indeed. I disable turbo boost on my 16". It hurts peak performance but runs (slightly) cooler and quieter, and sustains for longer. This reads all kinds of wrong.
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