VisionTek Radeon 7850 2GB DDR5 PCI Express Graphics Card (900505) 3GHz HDMI 1.4a with 7.1 Sound PCI Express 3.0 x16 bus interface DirectCompute 11 DirectX 11-capable graphics Shader Model 5.0 and OpenGL 4.2 support AMD CrossFire multi-GPU technology DisplayPort 1.2 Max resolution: 4096x2160 per display Multi-Stream Transport Limited Lifetime Warranty