PNY Quadro FX 4500 SDI 512MB. Graphics processor: FX 4500 SDI, Maximum resolution: 3840 x 2400 pixels, Graphics adapter RAMDAC: 400 MHz. Graphic adapter memory: 512 MB, Graphics adapter memory type: GDDR3, Memory bus: 256 bit. Interface type: PCI Express. DirectX version: 9.0, OpenGL version: 2.0. Bundled software: Drivers