GTX750Ti GPU 640 Stream Processors 4G/2G/1GB GDDR5 128-bit memory bus Core Clock : 1020MHz Memory Clock : 5400MHz PCI-Express 3.0 Connectors ： CRT/DVI/HDMI Power requirements System : 300W Card : 60W Maximum Resolution Analog: 2048 X 1536 Digital : 4096 X 2160