N520D3-1GI GT520,1GB,64bit,810Mhz,GDDR3,PCIE2.0,DVI,HDMI,ATX Specifications Chipset GeForce GT 520 Core Clock 810 MHz Shader Clock 1620 MHz Memory Clock 1333 MHz Process Technology 40 nm Memory Size 1 GB Memory Bus 64 bit Card Bus PCI-E 2.0 Memory Type DDR3 DirectX 11 OpenGL 4.1 PCB Form Low Profile Digital max resolution 2560 x 1600 Analog max resolution 2048 x 1536 Multi-view 2 Tools Easy Boost I/O HDMI*1 DVI-I*1 D-sub*1 Power requirement 300W Errors and omissions excepted