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Draw Screen Info 1 that will now show additional on-screen information about your CPU GPU config, resolution and as well as if Mantle or Direct X 11 is used for rendering.If you try out Mantle in BF4 we would really like to hear your feedback about it.If the Graphics API option is missing, that means you do not have a compatible GPU and driver and the game will use the standard Direct X 11 graphics API instead.

Test was done on the highest end Intel CPU on Windows 8, which is the fastest option before Mantle thanks to Direct X 11.1.

Still this CPU is not fast enough to keep the 2 290x GPUs fed at 1080p on Ultra settings so we get a significant CPU performance bottleneck which results in major performance improvement when enabling Mantle.

We ve also been able to streamline and optimize some of the GPU workload.

The end result is that game performance is improved in virtually all scenarios in Battlefield 4 on both Windows 7 and Windows 8 when running with Mantle.

This area is heavy on the CPU as it is quite a lot of action going on, but the game is primarily GPU-bound both on DX and with Mantle but thanks to GPU optimizations with Mantle we get a good performance improvement.

Result: 26.6 ms/f - 23.3 ms/f 14 faster Test case 2: Standard 64-player multiplayer CPU: AMD FX-8350, 8 cores 4 GHz Level was tested with 64 pseudo players that we have for our own internal testing that simulates heavy game workload that we have in multiplayer in order to get more deterministic results compared to full real multiplayer.

Read on for the full details on how to enable Mantle, and some information on the kind of performance gains you can expect.

In order to use Mantle you will need the following: -AMD Catalyst 14.1 Beta drivers. -AMD Radeon GPU with Graphics Core Next If you have the above you will see a new Graphics API option in the in-game Graphics Options settings after starting the game, here you can switch between using Direct X 11 and Mantle remember to restart the game after changing.

64 players on the large Battlefield levels is really demanding of the CPU so this test case is primarily CPU-bound.

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