AMD vs. Intel is a storyline dating back decades, but there are signs that the two rivals are becoming closer frenemies and even collaborating. There's a good reason for that--Nvidia is a threat to both companies. Intel and AMD have teamed up on a custom GPU for next-gen mobile chips. Nvidia happens to be AMD's biggest GPU rival on PCs. AMD also wants its GPUs in the data center too. Nvidia is the GPU leader in the data center and threatens Intel on artificial intelligence and high-performance computing. Intel wants to be the processor of data however it is used and sees Nvidia as fierce competition. Add it up and AMD and Intel may even need each other. The caveat: Intel and AMD won't be all warm and fuzzy over time. Intel poached Raja M. Koduri, chief architect of the Radeon Technologies Group and oversaw the development of the advanced Vega GPUs.