1、650MHz Core Frequency: For AMD HD7670 with for AMD chipset, 650MHz core frequency, 128bit bit width, 900MHz memory frequency, high speed memory. 2、4GB GDDR5: Graphics card with 4GB video storage capacity, lower operating temperature, higher efficiency, low noise and quiet operation. 3、Interface: PCI Express X16 2.1 graphics card slot for high performance gaming graphics card, HD Multimedia Interfacex1, DVIx1, VGAx1 display interface, support DirectX 11. 4、Cooling Fan: No additional power supply required, all solidly capacitors ensure low power consumption and high performance, with a cooling fan for efficient heat dissipation. 5、480 Stream Processor Unit: 480 stream processor unit,PCB, Aluminum Alloy and ABS material, wear resistant and durable, can be used for a long time. Item Type: 4GB GDDR5 Graphics Card Material:PCB, Aluminum Alloy, ABS Display Core: For AMD for RADEON HD 7670 GPU: Thames Core Process: 40nm CUDA Core: 480 Units Number of Transistors: 716M Core Frequency: 650MHz Memory Frequency: 900MHz Video Memory Capacity: 4096MB Video Memory Type: GDDR5 Video Memory Bit Width: 128bit DirectX Version: DirectX 11 Bus Interface Type: PCI Express X16 2.1 Display Interface: HD Multimedia Interfacex1, DVIx1, VGAx1 1 x 4GB GDDR5 Graphics Card