Graphics Processing Unit GeForce GTX 650 Ti Interface PCI Express x16 3.0 Core Clock Speed (MHz) 954 Memory Size (MB) 1024 Memory Type GDDR5 Memory Interface 128 bits Memory Clock Speed (MHz) 5400 DVI Connectors 2 (Dual-link DVI-I x 1, Dual-link DVI-D x 1) Mini-HDMI Connectors 1 (version 1.4a) Mini DisplayPort N/A HDCP Support Y RAMDAC speed (MHz) 400 DirectX Version Support 11.1 API (feature level 11_0) OpenGL Version Support 4.3 Card Dimension(mm) 230x111x35 mm Card Weight (g) 385g