Nvidia's one of the fastest growing companies with one of the lowest valuations, says Jim Cramer

Now, I just got back from one of the most remarkable of all places, the showcase for artificial intelligence and accelerated computing in all of its forms, Nvidia's GTC conference in San Jose. There I saw so many different companies capitalizing on Nvidia's software and hardware platform, and they're going to do that regardless of what happens in the Middle East. Nvidia stock is hard to understand.More on that later. But what keeps people from missing the big gains in the stock is that it it's really at the ...