We measure system-wide power draw from the wall while the card is sat idling at the Windows 10 desktop for 30 minutes. A reading under load comes from running the 3DMark Fire Strike Ultra stress test for 30 minutes.
Power draw is favourable for the GamingPro OC, as we see the card pull just 10W more than the Gigabyte 1660 – and almost 30W less than Gigabyte's 1660 SUPER.