As you can see from the test results the days of having to compromise between graphics performance over quietness are over, the EAH6770 DC SL/2DI/1GD5 suffers very little when compared to a normally cooled card (all be it with a non-reference cooler design) like Sapphire's Vapor-X HD6770.

DirectX 11 gaming performance

Asus eah 6770 dc: benchmarks

Asus eah 6770 dc: benchmarks

Asus eah 6770 dc: benchmarks

DirectX 10 gaming performance

Asus eah 6770 dc: benchmarks