weleh2....klo ane rasa sih bkan krena chipnya jelek kali yaa, mngkin agan kurang bruntung dpet barang defect ! :) bwt gt440, 80 drajat udh termasuk over loh, harusnya normal d kisaran 60-70 klo saran ane sih cari merk yg udh jdi first tier amd sma nvidia macem sapphire atw zotac :D ebuset gan itu