Lenovo 45K1670, GDDR3, 128 bit, 2560 x 1600 pixels, PCI Express 2.0 Lenovo 45K1670. Graphics processor family: NVIDIA. Graphics card memory type: GDDR3, Memory bus: 128 bit. Maximum resolution: 2560 x 1600 pixels. DirectX version: 10, OpenGL version: 3.0. Interface type: PCI Express 2.0. Cooling type: Active