Based on performance testing by AMD using pre-release beta software and driver versions.  Final released versions of software/drivers may vary yielding different results.  AMD Radeon R9 290X discrete graphics card using the ‘Mantle’ graphics API performed at 55 FPS in Battlefield 4 compared to 38 FPS using DirectX 11.  Game settings: 1920×1080, Ultra in-game preset, 4xAA, high FXAA, HBAO enabled.  System configuration: AMD A10-7850K APU, Asus A88X-Pro, 8GB DDR3-2400, AMD Radeon R9 290X, Windows 8.1 and AMD Catalyst 13.11 Beta 9.5​