I view it as a driver cheat for Nvidia just like whe ATI used to do with Anistrophic filtering in 3dmark years ago at driver level. Its just personal opinion but I just dont Nvidia anymore. Its not biased or fanboy based from me. Just how I feel on about it. Personally I feel async should be on period. I sure as bet you my R9 280 would destory a GTX 670, GTX 760 or even beat a GTX 960. Wish I still have my GTX 970 and Fury X to test this with. I dont get Async support in ROTR and thats a downer.