The Gigabyte GTX 980 Ti G1 GAMING card comes with a 1152MHz Base Clock and 1241MHz Boost Clock straight out of the box and uses two 8-pin power connectors as opposed to an 8 and a 6-pin.  That extra power and the WINDFORCE 3X custom cooler help you when overclocking the card beyond the frequencies it ships at.  [H]ard|OCP used OC GURU II to up the voltage provided to this card and reached an overclock that hit 1367MHz in game with a 7GHz clock for the VRAM.  Manually they managed to go even further, the VRAM could reach 8GHz and the GPU clock was measured at 1535 in game, a rather significant increase.  The overclock increased performance by around 10% in most of the tests; which makes this card impressive even before you consider some of the other beneficial features which you can read about at [H]ard|OCP.

"Today we review a custom built retail factory overclocked GIGABYTE GTX 980 Ti G1 GAMING video card. This video card is built to overclock in every way. We'll take this video card, compare it to the AMD Radeon R9 Fury X and overclock the GIGABYTE GTX 980 Ti G1 GAMING to its highest potential. The overclocking potential is amazing."

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