The GeForce GTX 780 GC Edition from Galaxy stands out from the reference design with a large two fan cooling system that helps it to provide improved performance over the stock version of the card. The cards heatsink is built using a hybrid design of copper and aluminum and EBR Fluid bearings help to ensure long life for the fans while providing near silent operation. A custom PCB design goes with a core clock of 1019MHz and 3GB of GDDR5. The card also has support for NVIDIA GPU Boost 2.0, PhysX, 3D Vision, and Adaptive Vsync.
Source: Press Release