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. 

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Fortnite Chapter 4 - DirectX 11 vs DirectX 12 vs Performance Mode

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DirectX 11 vs. DirectX 12: What Are the Differences and Which

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DirectX 11 vs. DirectX 12: What Are the Differences and Which

Testing DirectX 11 vs. DirectX 12 performance with Stardock's

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DirectX 11 Vs 12 - Which Is The Best? - Game Specifications