RX1550-TD128EH Radeon X1550 - 128 MB(Part Number: V068-010R)Interface Type PCI Express x16Interfaces 1 x DVI-I - 29 pin combined DVI, 1 x TV-outGraphics Engine ATI Radeon X1550 - Bus Type PCI Express x16API Supported DirectX 9.0, OpenGL 2.0 Core Clock 350 MHzMEMORYSize 128 MBEffective Clock Speed 800 HzAccess Time 2.5 nsBus Width 64-bitMemory Allocation Technology HyperMemory up to 512MB Technology DDR2 SDRAMMemory Allocation Technology HyperMemory up to 512MB POWER DEVICEGraphics Processor Manufacturer ATIGraphics Processor ATI Radeon X1550Clock Speed 350 MHzAPI Supported DirectX 9.0, OpenGL 2.0 Supported Video Signal DVIVideo Adapter Features Avivo Technology, fanless heatsinkDigital Video Standard Digital Visual Interface (DVI)Bus Width 64-bitType PCI Express x16