in case someone else is curious-- I put a wattage meter on my all in one device today - as I was also now more curious .
j1900 64bit 1m cache, 2 ghz up to 2.4 ghz TMP:10w . multiple lan port router board
full load-- at booting --20 - 23watts
idle with no load 10-11W
idle with my base operation , domoticz, influxdb,grafana, zigbee2mqtt and acting as basic router ( tracking usage) 11-12 watts. ( imputing about 1000 data entry points a minute into influxdb via mqtt and collectd )
idle with mycroft running in background - 13-14 watts - 15-21 watts when speaking ( mycroft-gui active) .
kodi playing 720p - 20watts ( mycroft in background and other base operations) - minus 3 watt if you mute the mic on mycroft
youtube video - 17watts - minus 3 watts if you mute the mic on mycroft