ASUS MARS GTX 760 4 GB @ techPowerUp
 

ASUS has engineered a truly unique product with their ROG MARS GTX 760. It is based on two GTX 760 GPUs on a single card, which provides amazing performance, sitting right between GTX 780 and 780 Ti. The cooling solution is also decent, and makes sure the card always runs full NVIDIA Boost clocks.

http://www.techpowerup.com/reviews/ASUS/MARS_GTX_760/