You can see the performance and power gains using DirectX 12.
Intel Demonstrates DirectX 12 at SIGGRAPH : Read more
Intel Demonstrates DirectX 12 at SIGGRAPH : Read more
well... since intel is having a hand in dx12, i suposed we can assume there is a "if intel; else" series of switched built into it.
Especially mobile APUs which are constrained by power and/or temp. I'm sure this will extend to the similar-concept DX12 as well.Also remember that Mantle is most useful with APU.
DireftX 12 will be used as a selling point for Windows 9.Why name it DX 12 ?! Why not just 11.1 as it's just a miniscule update that doesn't even require new hardware... Is this microsoft's money grabbing tactics (via bubble) to get people into Windows 9 ?