ASUS HD7770 DirectCU 1020MHz Overclocked GPU and GPU Tweak Graphics Cards HD7770-DC-1GD5 20% Cooler with exclusive DirectCU thermal solution 1020 MHz Overclock for better performance and outstanding gaming experience GPU Tweak utility allows you to tune graphics card performance and check card status via an intuitive interface New PCI Express 3.0 delivers improved encoding and twice the performance of PCI Express 2.0 Expand your visual horizons across six displays with AMD Eyefinity technology Microsoft DirectX 11 Support AMD HD3D Technology optimize stereoscopic 3D gaming and movie-watching entertainment HDMI x1DVI Out x1Mini DisplayPort x2D-sub x1 (via adaptor)