For its first 30 years, Nvidia wasn't a household name unless you were a gamer. Now, some of its original fan base feel left behind as artificial intelligence has made the chipmaker the world's most valuable company. "The gaming segment is no longer the driving force of the company. There was one point when it clearly was," said Stacy Rasgon of Bernstein Research. Nvidia popularized the graphics processing units, or GPUs, that enable fast frame rates and rendering that make the best video game