GIGABYTE AMD Radeon R7 260X - 2048MB GDDR5, 128-Bit Memory Bus, PCI Express 3.0 Connections : 1x DVI-I , 1x DVI-D, 1x DisplayPort, 1x HDMI Core: 1188MHz / Memory: 6000MHz DirectX 11.2, OpenGL 4.3, AMD GCN Architecture , AMD App Accelleration, AMD DH3D, AMD Catalyst, AMD Eyefinity, AMD Crossfire, HDCP Compliant