Gigabyte AMD Radeon R7 250X OC 1GB GDDR5 DVI/HDMI/2Mini Display Port PCI-Express Video Card GV-R725XOC-1GD GIGABYTE custom-designed 10 cm cooler Ultra Durable 2 Series OC Edition - Core Clock: 1050 MHz (Standard: 1000MHz) Memory Clock: 4500 System power supply requirement: 450W