EVGA GeForce GT 520 1024 MB DDR3 PCI Express 2.0 DVI/HDMI/VGA Graphics Card, 01G-P3-1521-KR GeForce GT 520 with 810 MHz core clock PCI Express 2.0 1024 MB 64-bit DDR3 memory 1400 MHz Effective memory clock and 1620 MHz shader clock Microsoft DirectX 11 Support GeForce GT 520 with 810 MHz core clock PCI Express 2.0 1024 MB 64-bit DDR3 memory 1400 MHz Effective memory clock and 1620 MHz shader clock Microsoft DirectX 11 Support Blu-ray 3D Support