RTHDRIBL
Again, much the same scaling and performance differences that we've already seen. The GT is close to the 400MHz Ultra, with the plain 6800 showing roughly the same delta to the Ultra that the X800 PRO has with the XT, due to disabling a quad pipeline.
The 6-series performance is definitely on the up with drivers after the initial 60.72 set, but RTHDRIBL's hand-written shaders execute fairly suboptimally on those boards, compared to the X800s.
