Definitely look for the cards that come with upgraded PCB components. MSI uses "Military Grade" components in their custom boards (Power Edition/OC) and Asus uses upgraded components in their DirectCU boards. Check Gigabyte for cards using their "Ultra-Durable" components. The EVGA Signature series and FTW series use upgraded components as well. There are others that upgrade their PCB components, not just simply adding a custom cooler on top of a reference board, so look for those.