You're on water, I'm not. I'm at 1.225V core and it maxes around 75C with the fan at 75%. For some reason the Final Fantasy XIV benchmark makes it run the hottest I've seen it run so I use that to test my overclock (plus it is the thing that crashed my GPU whenever other things including the Heaven benchmark were stable). I might be able to go higher but on air it sounds like a jet engine and the heat makes my room unbearably hot (wouldn't matter even if I had water cooling, the room is tiny and poorly ventilated).