AMD Radeon X1900 G5 Mac 256MB, GDDR3, 256 bit, 2560 x 1600 pixels
AMD Radeon X1900 G5 Mac 256MB. Graphics card memory type: GDDR3, Memory bus: 256 bit. Maximum resolution: 2560 x 1600 pixels. DirectX version: 9.0, OpenGL version: 2.0, Dual Link DVI