Gainward GeForce GT 640 1GB. Graphics processor: GeForce GT 640, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 1024 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. Height: 112 mm, Width: 150 mm