Power consumption due to boinc running on host

Very pragmatic measurement of power (W) consumption of my server with and without boinc client running (99% CPU load on idle) shows 40W difference !

CPU is a 2GHz Intel celeron, no idea how this scales for more up-to-date processors and boards.

However, with current energy costs, disabling boinc means savings in the order of a free 8GB USB stick per year !