Most of the AAA games are sponsored by either company so it's hopeless to find an unbiased game. And it's important that AMD and Nvidia do help the developers to get all the performance out of their cards. Of course it's another matter entirely to pay money to include proprietary features and say the developer can't accept anything from the competitor in turn. Whether either company has really done this I don't know for sure. It sure looks like that for games like LP2 or HAWX2. At least they haven't spent a moment trying to get AMD hardware to work anything like Nvidia cards.