Full Details from Amazon.com : http://www.amazon.com/gp/product/B003V8AS00?tag=onigi-20

ASUS GeForce GTX 460 (Fermi) 768MB 192-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support

Over-clocked with 700 MHz engine clock for reaching 118 performance
DirectCU Thermal Solution for up to 20 cooler than generic GeForce GTX460 TOP
TOP edition- over-clocked with 800 MHz engine clock for reaching 118 performance
ASUS Exclusive Voltage Tweak Technology for up to 50 Faster
DirectX 11 Support