XFX AMD Radeon HD 7970 Dual Fan BLACK EDITION, Radeon HD 7000 Series. Maximum resolution: 2560 x 1600 pixels, Graphics processor family: AMD, Processor clock speed: 1000 MHz. Graphic adapter memory: 3072 MB, Graphics adapter memory type: GDDR5-SDRAM, Memory bus: 384 bit. Interface type: PCI Express x16. Shader model version: 5.0, OpenGL version: 4.2, HDMI version: 1.4a. Supplementary power connectors: 1x 6-pin, 1x 8-pin