Musk says Samsung’s Texas fab outclasses TSMC’s US-based fabs — with AI5 still in development, questions remain over whether Tesla will need advanced tools

Elon Musk’s statement that Samsung’s Taylor, Texas fab is more advanced than TSMC’s Fab 21 in Arizona reflects the newer 3nm-era tools being installed there. However, this advantage has little relevance for Tesla’s AI5 processor, which likely relies on SF4A FinFET technology, which gains minimal benefit from those capabilities.