EVGA 512-P3-N963-TR GeForce 9600 GSO 512MB DDR3 PCI-Express 2.0 Graphics Card PCI Express 2.0 9600 GSO with 650MHz clock 512MB of DDR3 memory 900MHz clock with 1800MHz effective memory rate and 1625MHz shader clock Full DirectX 10 and Open GL 2.1 Support