"The new game update
for Battlefield 4 brings the Mantle renderer that DICE has developed in conjunction with AMD. With this first release of Mantle, you can expect performance increases in the game if you have the hardware to support it. In this blog post, the Technical Director for Frostbite details this exciting new step for the Battlefield series..."
How to enable Mantle
In order to use Mantle you will need the following:
-AMD Catalyst 14.1 Beta drivers.