There is no such thing as a reference cooled GHZ edition card, all of them have decent coolers and (silicon lottery permitting) decent over clocking headroom.
They seem to be using one in their review

Even worse if they were using a custom cooled one from a partner anyway as Kepler throttles a bit at 70c and the AMD one will be comparatively cooler.
Unfair to have one throttling and the other going full pelt nice and cool.
More holes!
