The windforce is a design of gigabyte, as is the ghz edition. EVGA, ASUS, MSI, PNY, GALAXY and im sure a few others MAKE THE CARDS and each of the manufacturers have different EDITIONS of the cards they make. Some are overclocked, some are not and some are REALLY OVERCLOCKED like the GHZ EDITION with the WINDFORCE 3 design fan on it. EVGA has the SUPERCLOCKED EDITION, FTW EDITIONS and CLASSIFIED EDITIONS.......MSI has GAMING EDITION and LIGHTNING EDITIONS. GALAXY HAS HOF edition and regular editions. Buying a OVERCLOCKED or OC edition just means you wont have to overclock it as much yourself if at all. The GHZ edition from GIGABYTE is pretty much the highest you will probably without water cooling.