Nvidia is the third most valuable company in the United States.
Why it matters: The chipmaker overtookAmazon and Alphabet this week. Now, the only companies worth more than Nvidia are Apple and Microsoft.
By the numbers: Between them, the AI-hyped duo of Microsoft and Nvidia — the new Wintel — are worth $4.8 trillion, more than Amazon, Alphabet, and Meta combined.
Meanwhile, the former leader in microchips, Intel, is worth less than $0.2 trillion.
The bottom line: If AI is a bubble, it's making the d0t-com bubble look small.