NVDA owns the high end space. AMD will take some market share, but I’m not as concerned about China as I would have been a few years ago. The pushback on the **** that they pulled on other industries in the past, primarily steel, has bipartisan support to not allow it. They could still steal the technology and dump their version of pirated chips, but without the US and their allies as customers they won’t be able to overrun that business. Also, they can’t have the best of the best ASML machines to produce them.
NVDA is in a sweet spot ATM. Things move quickly though. Novell, Intel, AOL, EMC, and Cisco all dominated their space not that long ago.