Sapphire Radeon HD 2400PRO PCI-E. Graphics processor: Radeon HD2400 Pro, Maximum resolution: 2560 x 1600 pixels, Graphics adapter RAMDAC: 400 MHz. Graphic adapter memory: 256 MB, Graphics adapter memory type: DDR2, Memory bus: 64 bit. Interface type: PCI Express x16. Shader model version: 4.0, OpenGL version: 2.0