" Those who pay attention to details probably have noticed that since late 2009, Apple has been going in the direction of ATI’s OpenCL acceleration architecture

" Those who pay attention to details probably have noticed that since late 2009, Apple has been going in the direction of ATI’s OpenCL acceleration architecture, the competitor to NVIDIA’s CUDA." It isn't really "ATI's OpenCL", NVIDIA supports OpenCL also. According to NVIDIA: "NVIDIA has chaired the industry working group that defines the OpenCL standard since its inception and shipped the world’s first conformant GPU implementation for both Windows and Linux in June 2009."