1440 at 1.212V is good. Just keep an eye on temps though. It should still boost another 100MHz. Have you tested it?
So i tried a +250 for the clock to get the 1515mhz clock and shadow of mordor crashed. I even tried raising the voltage to it's max , it still crashed. How has he managed to get a +250 stable ?
Old post but i'm going to revive it I can get it to 1569.5 and 8ghz memory speed without artifacts. It's the highest i can go for 24/7 stable, voltage is 1.237.