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: The AMD Radeon RX VEGA 56 video card is rated at 210W and the GeForce GTX 1070 is rated at 150W, so the outcome here is to be expected. We hit 444 Watts on the Vega 56 and just 352 Watts on the GeForce GTX 1070 while playing BF1. The AMD Radeon RX Vega 56 used 92 Watts more power in this game title!