Sparkle Technology GeForce GT220. Graphics processor: GeForce GT 220, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 625 MHz. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR3, Memory bus: 128 bit. Interface type: PCI Express 2.0. DirectX version: 10.1, Shader model version: 4.1, OpenGL version: 3.2. Compatible operating systems: Windows 7