this post was submitted on 27 Nov 2023
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AMD Radeon RX 7900M performance debut: Alienware m18 R1 laptop review (www.notebookcheck.net)
submitted 11 months ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 11 months ago (2 children)

7945HX is pulling 42 watts on idle here holy crap

[–] [email protected] 1 points 11 months ago (1 children)

Consumption when idling on desktop is not optimized which may contribute to the very short battery life. We're sometimes able to measure a consumption level as high as 101 W even when on the Balanced power profile with no active applications running. Consumption on standby mode would also be very high at 25 W when it should be closer to just 1 or 2 watts.

The model does not support charging via USB-C unlike on most other modern gaming laptops and so you're essentially tethered to the ginormous 330 W AC adapter when traveling.

Idle average was reported as 55wats, granted that's with the crazy issues above - however minimum idle was reported at 30wats, not great..

[–] [email protected] 1 points 11 months ago (1 children)

My scar 17 R9 7945HX

At idle it was pulling 20 Watts

This all AMD machine idle power drain. so,damn high

[–] [email protected] 1 points 11 months ago

Laptop CPUs typically target around 1W idle. 5W is more typical for the entire system. That results in around 11h battery life.

[–] [email protected] 1 points 11 months ago

Idle rarely ever is AMD CPUs' strong suit.