From pc gamer:
http://www.pcgamer.com/2014/08/14/intel-show-off-the-directx-12-performance-advantage/
Not sure how better it could be for all the games but this sound a good news. Better graphics with software optimization sound the way too go these day.
http://www.pcgamer.com/2014/08/14/intel-show-off-the-directx-12-performance-advantage/
Under DirectX 11 the demo runs at just 19FPS - switching over to DirectX 12 that jumps up to 33FPS. Thats over 70% quicker on the exact same hardware, just operating with updated DirectX software.
Not sure how better it could be for all the games but this sound a good news. Better graphics with software optimization sound the way too go these day.