[causi]

E.g. an i7 draws 65W at idle, or about 1.5kWh/day

I don't know which chip you're talking about but a 12900K idles at ten watts.

[pure_simplicity]

He is talking about an i7 on an older node, since he is comparing the lower production cost of older nodes with their higher usage cost (electricity). I don't know what intel generation would correspond to 32nm, but that was the node discussed.

[causi]

That would be the venerable 2600K of Sandy Bridge. It idled at five watts.