So I have been using my Powercolor 5700XT Red Devil for about two years, powering it with a single 8 pin (2x 6+2) cable. The highest peak I have noticed was between 230-250W (242W) while it was at 99% util.
I have the option to swap it for a MSI 3070 Ventus 2x OC and I'm about to go for it. I...