Viper HD2600XT 512MB GDDR3 Box Contents - Diamond Viper Radeon HD 2600XT graphics card, Quick Start Guide, Installtion CD, TVO Cable, DVI to VGA Adapter, Component HDTV Adapter PCI Express x 16 bus Slot 512MB GDDR3 video memory Core Clock - 800MHz High-speed 128-bit-HDR (High Dynamic Range) rendering