it's not "more powerful" per se. both are the same hardware, the white edition just has been overclocked from the factory. the GC version can reach the same as the white edition, they just aren't shipped at the same speeds. download a simple oc software, such as rivetuner or evga precision and punch in the clock speeds you want and there ya go. the cooler on the GC version looks better, so i'd go with that over the white edition.