PNY Verto GeForce 8400 GS 512MB PCI. Graphics processor: GeForce 8400 GS, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 567 MHz. Graphic adapter memory: 512 MB, Graphics adapter memory type: DDR2, Memory bus: 64 bit. Interface type: PCI. Shader model version: 4.0, OpenGL version: 2.1. Minimum RAM: 512 MB, Minimum hard disk space: 50 MB