And who cares about benchmarks for games on DirectX 9? Especially since the OpenGL port was made nearly 7 years after the DirectX version was released, and it's

And who cares about benchmarks for games on DirectX 9? Especially since the OpenGL port was made nearly 7 years after the DirectX version was released, and it's possible Valve could have made all sorts of optimizations based on advances in the meantime (either in their understanding of rendering or being able to take advantage of features that are in the newest versions of OpenGL but weren't around in a DirectX 9).