Sapphire 11199-16-20G AMD Radeon HD 7870 Dual-X 2GB GDDR5 Graphics Card (HDMI, DVI-I, DVI-D, Display Port, PCI Express 3.0, 256-Bit, AMD Avivo HD) The Sapphire HD 7870 GHz Edition is equipped with 2GB of the latest GDDR5 memory clocked at 1200MHz (4.8Gb/s effective) with the new dual-extractor technology - Dual-X - a highly efficient multi-heatpipe cooler with dual fans providing quiet and very cool operation during normal operating conditions, and superb cooling performance even under extreme load. model : Sapphire Radeon HD 7870 2GB tag : Video - Graphic Cards