EVGA 512-P1-N946-LR GeForce 9400 GT 512 MB DDR2 PCI Graphics Card PCI bus GeForce 9400 GT with 550 MHz core clock 512 MB 64-bit DDR2 memory 1000MHz memory clock and 1350MHz shader clock Full DirectX 10 Shader Model 4.0 and Open GL 3.0 Support