Gigabyte GV-N550OC-1GI. Graphics processor: GeForce GTX 550 Ti, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR5, Memory bus: 192 bit. Interface type: PCI Express 2.0. Shader model version: 5.0, OpenGL version: 4.1, HDMI version: 1.4a. Minimum system power supply: 400 W