The German CT magazine tested the Ryzen 7000 recently and they said the eco mode (or similar name) reduced the power consumption significantly (IIRC <65W after) with only modest (<5%) performance drop.
IIRC they also said not to disable EXPO.
IIRC they also said not to disable EXPO.
The 7700X at 65W TDP delivers 16% more than the 5800X at 105W TDP and 38% more than the 5700X at 65W TDP.
88W PPT = 65W TDP
And they can be undervolted as well.
Source: https://www.computerbase.de/2022-09/amd-ryzen-7950x-7900x-77...
edit: added 5700X