Power, Heat, And Efficiency
ASRock and MSI tie for first place in power-savings, with MSI showing the lowest idle wattage, and with all power-management options enabled in each motherboard’s firmware.
Asus has the lowest voltage regulator temperatures, closely followed by Gigabyte.
Since efficiency is a comparison of work to energy, we compare average performance to average power consumption. The Sabertooth 990FX has the best overall performance, even though it’s a very small lead.
ASRock’s first-place power savings and second-place performance puts it at the top of our efficiency chart, where 100% represents the average of all motherboards tested.