MSI Computer Corp. AMD Radeon HD 7790 OC 1GB GDDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card R7790-1GD5/OC Chipset: AMD Radeon HD 7790 Video Memory: 1GB GDDR5 Memory Clock: 6000 MHz Memory Interface: 128-bit PCI-E 3.0 Max. Resolution: 2560 x 1600