Matrox M9125 PCIe x16. Maximum resolution: 2560 x 1600 pixels, Maximum analog resolution: 2 x 2048 pixels, Maximum digital resolution: 2 x 2560 pixels. Graphic adapter memory: 512 MB, Graphics adapter memory type: DDR2, Memory bus: 128 bit. Interface type: PCI Express x16. OpenGL version: 2.0. Bundled software: Matrox display drivers for Microsoft Windows Vista and XP