For ‘idle’ power draw, a reading was taken after having Windows open on the desktop for 30 minutes. A reading under load was taken with Prime 95’s SmallFFt test running alongside 3DMark Fire Strike.
A peak power draw of 286 Watts is just over half of the power supply's rated capacity, and that ensures good efficiency levels and a quiet fan. There is also ample room for another GTX 1070 in the future.