Sparkle Technology GeForce 8400GS 512MB. Graphics processor: GeForce 8400 GS, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 512 MB, Graphics adapter memory type: DDR3-SDRAM, Memory bus: 32 bit. Interface type: PCI Express 2.0. DirectX version: 10.1, Shader model version: 4.1, OpenGL version: 3.2. Depth: 68.9 mm, Width: 166 mm