ASUS GeForce GTX 660 DirectCU TOP (GTX660-DC2O-2GD5)

Besides incorporating the DirectCU II custom cooler which helps churn 20% lower temperatures with twice the dissipation area and six times greater airflow compared to the reference card, the ASUS GTX660-DC2O-2GD5 runs at core clock speeds of 1085MHz (boost), 105MHz higher than the stock card.