It depends massively on the PSU, I used a CX750 for a week or two because G2 died, when I got my P2 the coil whine went from the GPU almost completely, in fact I think it has totally gone now. Coil whine can be annoying but only if I can hear it over my fan speed.I have the 1070 version of this card and mine has slight coil whine, but often I game with headphones on so it doesn't bother me