Sapphire AMD Radeon HD5750 1GB GDDR5 128-Bit Dual DVI-I HDMI DisplayPort PCI-Express 2.1 Graphics Video Card 11164-00 299-5E148-002SA.AMD GPU Model Number: Radeon HD 5750Sapphire Part Number: 299-5E148-002SASapphire Model Number: 11164-00Specifications:GPU:720 Stream Processors40 nm 700 MHz Engine ClockInterface:PCI-Express 2.1Memory:128 bit Memory BusGDDR5 Memory Type4600 MHz Effective1 GB SizeBIOS Support:Legacy BIOSOutput:2 x DVI-I1 x HDMI1 x DisplayPortAPI:OpenGL 3.2DirectX 11Shader Model 5.0Cooling: Active CoolingForm Factor: 2 Part Slot OccupiedSystem Requirements:450 Watt Power Supply600 Watt Power Supply is recommended for CrossFire System1024 MB Minimum of system memory1 x 6-pin AUX Power Connector2 x 6-pin AUX Power Connector is required for CrossFireX systemCD-ROM or DVD-ROM drive for installing softwarePCI Express 2.0 or higher version based PC is required with one X16 lane graphics slot available on the motherboard in order for the card to be compatible with.