Undervolted 1080 - some good success

Anyone had any success? Lots of tweaking the volt/Freq curve and I have it sitting at 1.02v and 2020mhz all stable (hours of Witcher, heaven, 3dmark etc).

Power usage dropped from 110% to 80% even at 100% load. Temps from 68c to 62c under load standing same place in heavy gaming.

Seems like a decent result. Anyone else tried this? These Pascal chips are damn impressive.

Reckon there is more headroom but at 2560x1080 I don't have much need as usually sits around 80% usage.