A 1080ti pc consumes around 300-350 watts at load though...... but still you want this value to be your 50% of your total wattage of your psu so it can utilize the efficiency of the power supply to its fullest. As long as it isn't sli,crossfire 450-550 watts should be fine.

This post has been edited by ljl87: Sep 1 2018, 10:11 PM