Désolé du UP mais je ne voulais pas créer un autre topic :D
Voilà en gros ce qu'apportera Dx11 par rapport à Dx9:
Features
Running with DirectX 11 enabled you will have the following enhanced graphics features available:
Advanced Shadows
The DirectX11 pipeline supports very high quality shadow maps, giving softer shadows with significantly less aliasing compared to DirectX 9.
Support for MSAA 2x,4x,8x. Requires Shader Model 4.1 or Shader Model 5 support, not available on Shader Model 4.0.
The DirectX11 pipeline supports Full screen multi-sampled anti-aliasing at 2x,4x & 8x resolutions.
Shader Model 4.1 cards will support 2x, 4x MSAA
Shader Model 5 cards will support 2x, 4x, and 8x MSAA
Enhanced Depth of Field
With Shader Model 4.0 & Shader Model 4.1 you will have enhanced depth-of-field with a dedicated pixel/vertex shader pipeline.
With Shader Model 5.0 Depth-of-field is accelerated with a Compute Shader, offering very high quality Depth-of-field at reduced cost
Tessellation Support
Tessellated and normal mapped rocks & rocky terrain surfaces (requires Shader Model 5 support)
Up close to the camera rocky terrain surfaces are visibly more detailed and realistic.
Performance
Performance when running in DirectX 11 mode vs. DirectX 9 mode varies across different configurations of pc hardware and drivers.
As with DirectX9 you will want to fine-tune your graphics options for best results.
We recommend that you start by downloading the latest drivers for your graphics card.