Product Detail Chipset: GeForce 8400GS Engine Clock: 450 MHz Video Memory: 512MB DDR3 Memory Clock: 1.8 GHz Memory Interface: 64-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600 Connectors: VGA, DVI-I, HDMI Thermal: Fansink Support PureVideo HD Technology Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 10.1, Shader Model 4.0 and OpenGL 2.1 . The "Gigabyte GeForce 8400GS 512MB DDR3 128B PCIE2 DVI/HDMI/VGA RTL Video Card GV-N84STC-512I" is best product for you. We recommended Gigabyte GeForce 8400GS 512MB DDR3 128B PCIE2 DVI/HDMI/VGA RTL Video Card GV-N84STC-512I