I was searching for a way to enable Depth bound test on DirectX 11.
Depth bound test is quite old
https://www.opengl.org/registry/specs/EXT/depth_bounds_test.txt
but is very useful for deferred rendering.
AMD have an extension for DirectX http://developer.amd.com/tools-and-sdks/graphics-development/amd-radeon-sdk/, there is something similar for nVidia?
I know I should resolve lighting with compute shader. :-S