ASUS EN8400GS SILENT/HTP/512M/V2 GeForce 8400 GS 512 MB 64-bit GDDR2 PCI Express x16 HDCP Ready Video Card GeForce 8400GS Engine Clock: 567 MHz 512M of DDR2 memory. Memory Clock: 1400Mhz MHz. Memory Interface: 64 bit DVI / 2nd VGA / TV-out / HDTV Support