Efficiency (high load)
At higher loads the score of every tested model is higher; the scores are also a lot closer to each other than before. All power supplies have an efficiency that is at least 80% at loads from 100 watts. The worst performing power supply is the Cooler Master MasterWatt Lite 700W with 83.4%, while the Be quiet! PowerZone 850W, Corsair HX750i, HX850, HX850i, FSP Aurum PT850W, Seasonic Prime Platinum 750W, 850W and Seasonic Snow Silent 750W have earned an extra compliment because these have an average efficiency that is more than 90% at high load.