AMD Radeon HD6990 4GB 256-Bit DVI Four Mini DisplayPorts PCI-Express Video Graphics Card 109-C20647-00 0J15H 00J15H CN-00J15H.AMD Model Number: Radeon HD6990AMD Part Number: 109-C20647-00Dell Part Number: 0J15H 00J15H CN-00J15HCompatible Part Numbers: 102C2060200 7120190000G(145A2X)