HP nVidia Quadro FX1500 256 MB PCIe Graphics, GDDR3, 256 bit, 3840 x 2400 pixels HP nVidia Quadro FX1500 256 MB PCIe Graphics. Graphics card memory type: GDDR3, Memory bus: 256 bit. Maximum resolution: 3840 x 2400 pixels. DirectX version: 9.0c, OpenGL version: 2.0, Dual Link DVI