Animus3D :
Please do research before you ask these types of questions. You can find the answers here:
http://tinyurl.com/jqu3wwp
A whole 16 posts in 18 months and you pull out a lmgtfy?
BigJohnny, not much at the moment, it may allow more smaller cores to drive a GPU better than fewer faster cores, but not yet. Like when DX10/11 first started, nothing supported it, that'll grow over the next 12+ months, but if a game doesn't use Dx12, then it just doesn't, BF3, Batman AA etc. don't.