Evga 512-p3-1301-kr Geforce 8400 Gs Graphic Card - 520 Mhz Core - 512 Mb Ddr3 Sdram - Pci Express 2.0 X16 - 1200 Mhz Memory Clock - 32 Bit Bus Width - 2560 X 1600 - Sli - Directx 10.0, Opengl 3.1 - 1 X Hdmi - 1 X Vga - 1 X Total Number Of Dvi - Pc - Dual