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#11
353.62. "DX12 ready" means a lot of things. Your card will see some advantages from DX12, but not as much as newer cards. There are different levels of compatibility. Maxwell cards (and up) will have the most compatibility with DX12 features, while Fermi (which I believe your card is) will have the lowest. Kepler cards will range in between.
That should explain why your card maxes out at Feature Levels 11.0 and WDDM 1.3, while mine max out at FL 12.1 and WDDM 2.0.
Check out this article: http://www.extremetech.com/extreme/2...d-dont-deliver as it may explain it better than I can.