There are some performance improvements in 8.1.5, but it is mainly the same as the 8.1.0 release.
D3D12 Multi-threaded rendering backend using DirectX 12 for hardware, drivers, and operating systems that support it. D3D11 New multi-threaded rendering backend using DirectX 11. Enables World of Warcraft to use Shader Model 4 and 5.
Possible Settings D3D11_LEGACY Old single-threaded rendering backend using DirectX 11, similar to the functionality of DirectX 11 in 8.0.1. Windows Default auto Automatically selects a graphics API. Accepts D3D11_LEGACY, D3D11, D3D12, gll or opengl as parameters.
