I didn't impose a comparison classification, simply correcting egregious misinformation.
Does Mantle work on Nvidia or Intel? Was it ever offered to Nvidia or Intel? Is the API only available to select developers of AMD's choosing?
Not sure why you insist I am giving misinformation when it is quite clear that Mantle in its current form is proprietary.
Talking of which, does Oculus have a release date yet? On my phone and stuck at work till 6am 