Gigabyte GTX 660 Windforce OC 2 GB @ techPowerUp
 

Today NVIDIA launched their new GTX 660. Gigabyte has sent us their overclocked GTX 660 Windforce OC which also comes with a large dual-fan cooler that provides extremely low temperatures in both idle and load. The overclock out of the box helps to gain some performance on the HD 7870.

http://www.techpowerup.com/reviews/Gigabyte/GTX_660_OC/