Still demanding DX11 benchmark that we've used for a while here on the WSGF. Though it's closing in on two years old, the AvP stand-alone benchmark tool is still a good test of DX11 hardware. It isn't very demanding from a CPU perspective, so it gives a good test of the GPU itself.
The AvP demo also makes good usage of DX11 effects such as Advanced Shadows and Geometry Tessellation, particularly on the alien create and the alien "pods". There are also some unique lighting effects used, by placing mobile lighting sources in a floor lamp that is battered around by the alien creatures as they clamor down a tight hallway.