That I/O is relatively inexpensive power-wise from experience, and is totally off when unused. For those Ryzen parts, the thing that hikes power use a lot is h

That I/O is relatively inexpensive power-wise from experience, and is totally off when unused. For those Ryzen parts, the thing that hikes power use a lot is having a separate northbridge in the same package instead of an SoC, with the vast majority of that additional power use being due to that.