since the card cost a fortune and one way to lose you money is to fry it.

I advise 270 watts and 2150 memory

vs 300 watts and 2400 memory

check what that drops the hash to 110 hash is about 12 a day usd


115 hash is about 12.50 a day usd

120 hash is about 13 a day usd

if I were you anything over 110 is decent only 1 dollar less a day before power cost. and may save the card.

also a fan blowing on the back of the card is good.