Get Tom's Hardware's best news and in-depth reviews, straight to your inbox. You are now subscribed Your newsletter sign-up was successful Although the $20 billion funds injected in Elon Musk's TeraFab project — which is supposed to build logic and memory chips as well as package them under one roof — is barely enough to build a 7nm-class logic fab, Elon Musk's eventual ambitions include producing millions or billions of AI chips that consume 1 terawatt (1 TW) of power per year. This ambition by far exceeds today's industry capacity, and if Musk pursues it, he will need $5 trillion, according to Bernstein (via @Jukan05). Interestingly, the order of the sum is similar to what Sam Altman was seeking for his failed fab network a couple of years ago. To build 1 TW of AI silicon per year, Elon Musk's TeraFab would need to process 22.4 million Rubin Ultra GPU wafers, 2.716 million Vera CPU wafers, and 15.824 million HBM4E wafers annually using from 142 to 358 fabs, according to Bernstein.…