Gigabyte Radeon HD 6670 2GB DDR3 PCI Express 2.1 DVI-I/HDMI/D-SUB Crossfire Ready Graphics Card GV-R667D3-2GI GIGABYTE ultra large 100mm Fan cooling design Features DVI-I/HDMI/D-SUB outputs with hdcp protection Ultra Durable 2 - Ultra Cooling - Low RDS(on) MOSFET Design - Low Power Loss - Ferrite Core Choke Design - Longer Life - All Solid Capacitor Design Gold plated HDMI for optimum signal transfer between connections Core Clock: 800MHz/Memory Clock: 1600MHz Supports AMD Eyefinity/Eyespeed/CrossFire/Avivo technology Minimum Recommended Power Supply 400W