Have some trouble knowing what my card is actually running at.
Full load in games GPU Tweak is reporting 1175mv at default settings, allowing it to boost to 1367. That doesn't change all the way up to boosting at 1533, at which point it will eventually TDR. Meanwhile if I use GPU-Z to monitor sensors, it reports 1215mv at the same load ( don't think that's reporting correctly at all). If I add some extra voltage, I don't see any change til the slider is on about 1235mv, at which point GPU Tweak is reporting 1191mv, but GPU-Z remains unchanged 😞