MSI nVidia GeForce GTX550 Ti 1GB DDR5 2DVI/Mini HDMI PCI-Express Video Card N550GTX-TI M2D1GD5/OC Chipset: GeForce GTX550 Ti Engine Clock: 950 MHz Video Memory: 1GB DDR5 Memory Clock: 4300 MHz Memory Interface: 192-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600 Connectors: Dual DVI, Mini HDMI Thermal: Fansink Military Class Components Support nVidia PhysX Technology Support nVidia CUDA Technology Support nVidia PureVideo HD Technology Support nVidia 3D Vision Surround Ready Support nVidia 3-way SLI Technology Support HDCP - High-bandwidth Digital Content Protection Microsoft DirectX 11 & OpenGL 4.0