That doesn’t seem right. The tdp for the 1700 is 65w… no way an io die is consuming most of that. Here’s a comparison of a system with a ryzen 1700 idling vs intel contemporaries which don’t have a separate i/o die:
https://www.bit-tech.net/reviews/tech/amd-ryzen-7-1700-revie...
Note that it’s only 7W greater at stock clocks.