For testing power consumption, we took our test system and plugged it into a Kill-A-Watt power meter. For idle numbers, we allowed the system to idle on the desktop for 15 minutes and took the reading. For load numbers we ran Battlefield 1 at 1920 x 1080 and recorded the peak power number while gaming a particular level that we test on each card. Our idle numbers are high, but keep in mind that we are using a workstation motherboard that has two 10GbE ports and other high-power draw controllers on it.
Power Consumption Results: With the PowerColor RED DEVIL Radeon RX 570 installed in the system we topped out at 405 Watts when running BF1 at 1080P resolutions and used 155W at idle. AMD isn’t winning the efficiency battle as the GeForce GTX 1060 FTW card by EVGA topped out at just 315 Watts, so the competing NVIDIA cards around this price point use nearly 100W less power!