On Aug. 27, Nvidia is set to report its fiscal second-quarter earnings. Only time will tell what those earnings reveal, but it's natural for investors to wonder if they should buy Nvidia's stock before the earnings to potentially take advantage of a post-earnings stock price boost.

Nvidia is the first company to reach a $4 trillion market cap and is a leader in the development and progression of artificial intelligence. Here's how to get involved.

Taiwan Semiconductor's soaring AI revenues, aggressive investments and lower valuation give it an edge over NVIDIA as the better AI stock bet.