DICE is looking to beef up some of the Battlefield 4 optimizations by way of DirectX 11.1 features. In a post made on NeoGAF, Johan "repi" Andersson, the Technical Director for Battlefield 4 made this quite clear.
Now, DirectX 11.1 full functionality is only included in Windows 8, Windows RT, and Windows Server 2012 and better. Partial DirectX 11.1 support is included in Windows 7 and Windows Server 2008 R2.
I'm not exactly familiar with the inner workings of DirectX, but from what I've heard, only the latest AMD/ATI cards fully support DirectX 11.1's feature set. While Nvidia's Kepler line of cards (IE: GTX 6xx line) says it supports 11.1, it reportedly does not fully support all of the features. However, the bits of 11.1 that are important to gaming are reportedly supported with Kepler.
I'm sure once the official system requirements for Battlefield 4 come out, this will all be made a lot more clear.
We use DX11.1, there are some optimizations in it (constant buffer offsets, dynamic buffers as SRVs) that we got in to the the API that improves CPU performance in our rendering when one runs with DX11.1. This will be in BF4.
Now, DirectX 11.1 full functionality is only included in Windows 8, Windows RT, and Windows Server 2012 and better. Partial DirectX 11.1 support is included in Windows 7 and Windows Server 2008 R2.
I'm not exactly familiar with the inner workings of DirectX, but from what I've heard, only the latest AMD/ATI cards fully support DirectX 11.1's feature set. While Nvidia's Kepler line of cards (IE: GTX 6xx line) says it supports 11.1, it reportedly does not fully support all of the features. However, the bits of 11.1 that are important to gaming are reportedly supported with Kepler.
I'm sure once the official system requirements for Battlefield 4 come out, this will all be made a lot more clear.
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