Zotac GeForce GT 640 LP 2GB. Graphics processor: GeForce GT 640, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 2048 MB, Graphics adapter memory type: DDR3-SDRAM, Memory bus: 128 bit. Interface type: PCI Express 3.0. Shader model version: 5.0, OpenGL version: 4.2, HDMI version: 1.4a. Power consumption (typical): 65 W