Sapphire HD 6770 1GB GDDR5. Graphics processor: Radeon HD 6770, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: AMD. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR5-SDRAM, Memory bus: 128 bit. Interface type: PCI Express 2.0. Shader model version: 5.0, OpenGL version: 4.1