Gigabyte GeForce GTS 250. Graphics processor: GeForce GTS 250, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR3, Memory bus: 256 bit. Interface type: PCI Express 2.0. OpenGL version: 2.1. Compatible operating systems: Windows 7/Vista