MSI NVIDIA GeForce GTX 770 Gaming OC 4GB GDDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card N770 TF 4GD5/OC Chipset: NVIDIA GeForce GTX 770 Core Clock: 1137 MHz Video Memory: 4GB GDDR5 Memory Interface: 256-bit RAMDAC: 400 MHz Connectors: DVI-I, DVI-D, HDMI, DisplayPort