DICE, developers of the smash-hit online multiplayer FPS of the season, Battlefield 4, rolled out its promised game update that lends it support for AMD Mantle API. The low-overhead 3D graphics API, according to leaked documents we've seen, is claimed to improve performance of the game by up to 45 percent in CPU-limited scenarios. By that token, we imagine the performance increment in GPU-limited scenarios to be different. The game patch is only half of the story. The other half is the API itself, which will be distributed by AMD, in its Catalyst software suite. The first public release of Mantle will be part of Catalyst 14.1 beta, which will be rolling out a little later this week. Stay tuned for our comprehensive DirectX 11.1 vs. Mantle testing, starring a Radeon R9 290.