Oh wow. Are you using the GPUs fan to keep it that cool? or an external fan? Or just a wide open case?
Also how are you getting such high hash rate. Mine oddly, sometimes jumps around to 300-310 sol/s But 90% of the time. Its between 290-299.
And hmm. Well I think my hydro here is super cheap. If I'm correct its like .05-.12/kw/h
If I tried putting my GPU over +750 for memory clock. My graphics crash and restart with defaults.So its impressive that yours is staying stable at that high. Maybe if I didn't run a gui on my computer I use more minng (and other things) hashrate would be more consistent
So I'm keeping it at about +650 Which only give me 285-299 sol/s.
EWBF doesn't seem very accurate.