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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 asenna on Monday October 18, 2021 @02:54PM (#28909823)
I have the 16" MBP (late-2019), really annoyed with the heating issues. Any time I do anything intensive, like edit raw images in Lightroom, at some point temperature rises which makes some "kernel process" pretty much hog up all the CPU and the machine starts lagging severely. Looked up online and this is quite common.
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Re:MacBook Pro 14-inch and MacBook Pro 16-inch by eyelidlessness on Monday October 18, 2021 @05:56PM (#28912311)
It’s come up before but still not everyone knows: you may want to try plugging the power cable on the right side. It can drastically reduce this throttling.
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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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