While it appears that both Nvidia and AMD are battling over Rockstar's Grand Theft Auto V, which does not come as a surprise considering how popular the game is, as a part of AMD's Gaming Evolved program, GTA V will have support for Contact Hardening Shadows (CHS) feature.
We have not heard much about Contact Hardening Shadows (CHS) feature earlier. According to AMD, it dynamically hardens or softens a shadow’s edges depending on the distance of the shadow from the light source and object casting that shadow. This should make softer shadows diffuse more realistically. The CHS feature can be enabled in the Soft Shadows drop down menu in the game settings.
As you probably already know, AMD has released the new Catalyst 15.4 Beta drivers aimed to be used with GTA V.
It seems that AMD and its PR companies made a mix up last week, when they announced that Grand Theft Auto V is the latest addition to Gaming Evolved family. Apparently and according to the latest update we got from AMD's PR company, Grand Theft Auto V just has some Gaming Evolved features, including the aforementioned Contact Hardening Shadows (CHS), but is not an official Gaming Evolved title and should not be menitoned as such.