DirectX 12 vs DirectX 11 Performance Slides

Windows 10 will be coming with DirectX 12.  DirectX 12 is the first version of DirectX that really uses multiple cores effectively. Bottom line: In DirectX 11 this frame took almost 9ms to render. 

FORTNITE Chapter 4 DirectX 12 vs DirectX 11 vs Performance

DX12 CPU Performance Leaked, Way Faster Than DX11 - Threading

Intel Outlines Arc A750 Graphics Card For $289, More Arc Graphics

DirectX 12 Analysis: New Rendering Features, ExecuteIndirect

Windows 11 review

DirectX 11 vs DirectX 12: Complete Performance Comparison

Exploring DirectX 12: 3DMark API Overhead Feature Test

AMD Radeon Software Archives

3D graphics in Revit to be 'radically improved' - AEC Magazine

Derm DX

Parallels Desktop Review

Performance mode vs DX11 vs DX12 : r/FortniteCompetitive

NVIDIA's New DX11 Drivers Promise Huge SLI Performance Benefits