I was always under the impression that the backlight is a lot of the power that displays consume, which is why LED displays use so much less power than CCFC dis

I was always under the impression that the backlight is a lot of the power that displays consume, which is why LED displays use so much less power than CCFC displays. That would remain constant with resolution, right? If that's the case, I'd think that the actual GPU work (or the RAM, like you say) is where the power difference was for me. I could be wrong about how significant the backlight is on an LED display though. I also thought that modern video cards (as in from the last 15-20 years) optimized 2D graphics so that regular desktop use didn't require pushing a screen full of pixels to the GPU on every frame. That would seem to diminish the significance of the actual number of pixels at QHD+. I don't have a good answer.