ASUS nVidia GeForce GTS450 1GB DDR5 VGA/DVI/HDMI PCI-Express Video Card ENGTS450/DI/1GD5 Chipset: GeForce GTS450 Engine Clock: 810 MHz Video Memory: 1GB DDR5 Memory Clock: 3608 MHz Memory Interface: 128-bit Bus: PCI-Express 2.0 x16 Max. Resolution: 2560 x 1600 Connectors: VGA; DVI; HDMI Thermal: Fansink Support Microsoft Windows 7 Support nVidia SLI Technology Support nVidia 3D Vision Technology Support nVidia PhysX Technology Support GeForce CUDA Technology Support Microsoft DirectX 11