ASUS GTX660 Ti Series 2GB Video Graphics Cards GTX660 TI-DC2-2GD5 20% cooler and Vastly quieter performance with ASUS exclusive DirectCU II thermal solution ASUS DIGI+ VRM technology with 6phase Super Alloy Power for precise digital delivery and enhanced over clocked headroom. (compared to 4phase in reference card) GPU Tweak utility allows you to tune graphics card performance and check card status via an intuitive interface.