News for hackers. Stuff that matters.

A comment on Apple announces it will switch to its own processors for future Macs. Parent comment

Re:Apple announces it will switch to its own processors for ... by dijit on Monday June 22, 2020 @06:04PM (#23607412)
10w is on the high end of this, my 1080p screen on my Precision 5520 sucks down a paltry 1.5w at mid brightness, the big killer is the wifi chip. That takes between 1.5-5w.

CPU tends to be quite lean, until something needs to be done then steps up very quickly to consuming 45w.

[ Parent | on HN ]
Re:Apple announces it will switch to its own processors for ... by user5994461 on Monday June 22, 2020 @06:13PM (#23607492)
I usually consider 5 to 15W for laptop display consumption. Depends on the display, size and brightness.

It's quite variable, the highest brightness can consume double of the lowest brightness for example. One interesting test if one has a battery app showing instant consumption (I know lenovo laptops used to do), is to adjust brightness and see the impact.

[ Parent | on HN ]
Re:Apple announces it will switch to its own processors for ... by dijit on Monday June 22, 2020 @06:14PM (#23607504)
Yeah, this is probably harder to do on a macbook, but intels 'powertop' program on Linux has quite high fidelity, matches the system discharge rate reported by the kernels battery monitor too.
[ Parent | on HN ]