Your first paragraph its a joke. AMD tried to solve the OpenCL parallelism problem "myth" without shared cache, nothing to do with specifications. As for the second, try to play a last generation game with an AMD card like Tera_Online, or CSS_orange_box, doesn't play, even the OpenGL renderer of Portal2 In many areas gives 5fps for an HD4670. And on top of that many games will never play with HD4000 and lower, because AMD has drop support and farther evolution with Catalyst. The only possibility for those cards it's the Open_Source, and Intels work that drives everything fast.