For Crysis 2, Crytek has implemented Nvidia's OpenAutomate SDK for easy automation of benchmark routines:

benchtool Crysis 2 Launched: Quick Performance Preview

vsync Crysis 2 Launched: Quick Performance Preview

More on OpenAutomate: http://developer.nvidia.com/object/openautomate.html

This is the official timedemo level executed by the OpenAutomate utility.