Like other manufacturers, Galaxy company released at the same time two versions of GeForce GTX 670 : a copy of reference sample KFA2 GeForce GTX 670 and overclocked model KFA2 GeForce GTX 670 EX OC.
First, for obvious reasons, of little interest, because the focus on the second.
According to the manufacturer, KFA2 GeForce GTX 670 EX OC use their own printed circuit board design. Being more effective than the reference cooler, the cooler with two fans allowed to raise the GPU frequency from 915 MHz to 1006 MHz. Increased frequency is 1058 MHz, whereas the reference sample is equal to 980 MHz.