I'm using 1200 watt power supply on a rig that consists of 5 gtx1660 and 1 3060ti and from wall I'm only using 480watt, I calculated this using watt meter, imagine how many power I have left but if I have to use more I will make sure it doesn't exceed 1000watt for GPUs and Motherboard combine, I don't want a dead power supply on my watch