GIGABYTE R587UGD, Radeon HD5870, 1 GB, GDDR5, 256 bit, 2048 x 1536 pixels, PCI Express 2.1 GIGABYTE R587UGD. Graphics processor family: AMD, Graphics processor: Radeon HD5870, Processor frequency: 850 MHz. Discrete graphics card memory: 1 GB, Graphics card memory type: GDDR5, Memory bus: 256 bit, Memory clock speed: 4800 MHz. Maximum resolution: 2048 x 1536 pixels. DirectX version: 11, OpenGL version: 3.1. Interface type: PCI Express 2.1. Cooling type: Active