AMD released the new driver Support Mantle API Driver Catalyst 14.1 Beta, Still there are very few stack of applications support Mantle, from EA Battlefield 4 and Star Swarm is now on the list. Mantle API supports GCN architecture series graphics cards such as the Radeon HD 7000, HD 8000, R7 and R9, and new AMD A-Series Kaveri APUs A10-7850K and A10-7700K.
At this stage CPU now becomes the bottleneck in a system, mantle API can use to low the CPU workload GPU, Mantle API allows low-end range CPU to take the full advantage of the High-End GPU performance. Still Mantle supports only vendor-specific API, unless Nvidia and Intel GPU support, also the game developers are not fully motivated to develop games for the Mantle supportive engine, it may not challenge the dominant Direct3D and OpenGL API, The best situation is incorporated into future versions of Direct3D and OpenGL.
If we talk about performance with the new AMD Catalyst™ 14.1 Beta Driver. Foreign media Run Battlefield 4 at Full High Setting’s at 1920×1080 resolution with R9 290X. Increase in performance is around 10% and in graphic Performance around 30%.