Sapphire 21121-00-20R, GDDR3, 256 bit, 2560 x 1600 pixels
Sapphire 21121-00-20R. Graphics card memory type: GDDR3, Memory bus: 256 bit. Maximum resolution: 2560 x 1600 pixels. DirectX version: 10.1, OpenGL version: 2.0, Dual Link DVI