ATI Radeon™ HD 2900XT - Viper Video Products (graphics cards)
Viper ATI Radeon™ HD 2900XT PCIE 1024MB GDDR4 Bus Type: PCI Express x16 Memory Size: 1 GIG ( 1024 MG) Memory Configuration: 8Mx32 GDDR4 Memory Interface: 512-Bit Memory Speed: 1100 Mhz Dual DVI (Dual Link), HDTV, D-sub Support & VIVO		Viper ATI Radeon™ HD 2900XT PCIE 512MB GDDR3 Bus Type: PCI Express x16 Memory Size: 512 MB Memory Configuration: 8Mx32 GDDR3 Memory Interface: 512-Bit Memory Speed: 825 Mhz Dual DVI (Dual Link), HDTV, D-sub Support & VIVO