Sapphire Radeon 6850 Vapor-X with Dirt 3 @ TechwareLabs.com
 

Purchasing a video card can be very confusing. Looking at the different model lines and features across multiple manufacturers boasting over clocked memory, or specialty cooling can be enough to make your head spin. Focusing on AMD there are two series that are Direct x 11 compatible the 5000 and 6000 series GPU's. Released in 2010 the 6000 series cards are the second generation DX 11 GPU's and offer AMD PowerTune technology making the cards more energy efficient with lower operating temperatures. Today we have the Sapphire Vapor-X HD6850, here is what Sapphire has to say.

http://www.techwarelabs.com/sapphire...x-with-dirt-3/