XFX AMD Radeon R9 270X 4GB GDDR5 2DVI/HDMI/2Mini DisplayPorts PCI-Express Video Card Mfr Part Number: R9270XEDFC;R9-270X-EDFC Chipset: AMD Radeon R9 270X CoreClock: 1000 MHz Boost Clock: 1050 MHz Video Memory: 4GB GDDR5