Lenovo 0B47389, Radeon HD7450, 1 GB, GDDR3, 64 bit, 2560 x 1600 pixels, PCI Express 2.0 Lenovo 0B47389. Graphics processor family: AMD, Graphics processor: Radeon HD7450, Processor frequency: 800 MHz. Discrete graphics card memory: 1 GB, Graphics card memory type: GDDR3, Memory bus: 64 bit. Maximum resolution: 2560 x 1600 pixels. DirectX version: 11, OpenGL version: 4.1, Dual Link DVI. Interface type: PCI Express 2.0. Cooling type: Active