Feature Level 11.1 is a specific version of the Direct3D API, which was introduced with Windows 8.1 and Windows Server 2012 R2. It provides a range of features, including:
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Direct3D (D3D) Feature Level 11.1 is a hardware-specific capability set integrated into Windows 8 and later, rather than a standalone file available for download. Enabling 11.1 requires updated graphics drivers and hardware support, which can be verified via the DirectX Diagnostic Tool ( dxdiag ) to ensure 11_1 is listed. For comprehensive details, check the Microsoft support documentation. Feature Level 11