Apple has outfitted its notebooks with Nvidia's graphics chips for years, including the existing MacBook line, but that may not be the case in future systems. According to sources We imagine Cupertino will continue to ship premium notebooks with discrete graphics chips, but not necessarily Nvidia's. CNET's sources say that Apple will rely on AMD to supply it with graphics processors for future MacBook Pros, with the possibility of AMD's upcoming Fusion chips appearing in low-end MacBooks.