EVGA GeForce GT 520 2048 MB DDR3 PCI Express 2.0 DVI/HDMI/VGA Graphics Card, 02G-P3-1529-KR Microsoft DirectX 11 Support 1000 MHz Effective Memory Clock and 1620 MHz Shader Clock 2048 MB 64-bit DDR3 Memory PCI Express 2.0 GeForce GT 520 with 810 MHz core clock GeForce GT 520 with 810 MHz core clock PCI Express 2.0 2048 MB 64-bit DDR3 Memory 1000 MHz Effective Memory Clock and 1620 MHz Shader Clock Microsoft DirectX 11 Support Blu-ray 3D Support