DELL HD2600XT, GDDR2, 128 bit, 1920 x 1200 pixels, PCI Express x16 DELL HD2600XT. Graphics card memory type: GDDR2, Memory bus: 128 bit. Maximum resolution: 1920 x 1200 pixels. DirectX version: 10.0. Interface type: PCI Express x16. Cooling type: Passive