Keplar is old tech, in-fact too old. If the same had happened to rebranded AMD cards from Last GCN before hawaii, AMD loyalists would have told, that its a commonplace event that demanding games would run terribly in older hardware, because? industry..of course, if the older gen was so powerful in the first place, why give birth to newer techs?
But since it happened with Nvidia, their stance with gameworks now is totally on the aggresive where it was debated and settled number of times in past that GW from nvidia is not an obstruction for AMD owners between their card and the game. In-fact, Watch-dogs, AC unity, Far Cry 4 has been proved to be performing equally well, sometimes even better in AMD cards such as 290X, 290 than 780s and titans.. only the AMD GPU's did not have access to propertiery featuers like PCSS, Phyx and all...
AMD should keep up fast...perhaps releasing "new" and "powerful" tech sooner...no one is stopping AMD to take rights and instigate optimization under a platform where they have something as good as gameworks in terms of features...where is mantle now?
What can be said about below then?