[f001]

The ryzen 1700 is also from 2017. Intel’s cpus still dominated at the time for anything single-threaded, they were just bad at multithreaded workloads. I’m not saying i/o die power consumption isn’t higher, it is for sure. And I agree, it doesn’t go down at idle because it can’t turn off or do power gating.

What I’m saying is that a computer with a cpu that is 65W TDP (from a time when amd’s TDP was close to being accurate as ~ max power consumption under load), the i/o die (which is part of that 65w TDP; which is for load) cannot possibly be the main reason his computer is idling at 80W. Especially when I linked an instance of a system also with a ryzen 1700 that was idling for 57W and with a similar configuration as an intel contemporary only being 7W greater at idle.

[Rinzler89]

The 65W tdp you keep bringing up is under load and data is from 2017 when I tell was still on 14nm, but we're talking about idle power draws here and Ryzen looses to Intel in most cases in most modern data in the <10nm era.

Here:

https://news.ycombinator.com/item?id=32809852

https://youtu.be/JHWxAdKK4Xg?si=OFx6puKRSc1TYSX8

[f001]

For both the 1700 and 5800X, the i/o die uses ~12W at idle, and 20W max at load (assuming he’a doing something that keeps the i/o die at max power consumption when everything else is idle).

This leaves us with 60W-68W unaccounted for at idle. Even in the worst case for i/o power usage that’s 75% unaccounted for.

I keep talking about TDP and load power because even in the case where the cpu isn’t using lower power states correctly for whatever reason, the i/o die cannot possibly be majority of the 80W power usage.

Source for power usage of i/o die:

1700 (same i/o die as 1300x/1500x): https://www.anandtech.com/show/11658/the-amd-ryzen-3-1300x-r...

5800x: https://www.anandtech.com/show/16214/amd-zen-3-ryzen-deep-di...