For years, Nvidia has seemed almost untouchable. Now, the challengers are coming from every direction. Its biggest customers are now designing their own chips.

For years, Nvidia has seemed almost untouchable. Now, the challengers are coming from every direction. Its biggest customers are now designing their own chips. So just how durable is Nvidia’s lead? Joy Yang from MarketVector Indexes speaks to Reuters on this [▻](https://video.twimg.com/amplify_vid…