60% is really remarkable.
And while it's true that more modern stuff (like Unigine) will tax the drivers more, these naked frame-pushing benchmarks are still important because they show the CPU bottlenecks which are one of the main causes of lower performance.
Obviously, things are improving here. About half a year ago, r600g was slower than 30% of Catalyst, nowadays it's around 75% on some cards/workloads.
With MLAA and VDPAU around the corner, and OpenGL 3.0 almost here, it's a good time for open source.