China Builds World's Fastest Supercomputer Without U.S. Chips

China's LineShine supercomputer, ranked first on the TOP500 list at ISC 2026, achieves 2 exaflops—a measure of computing speed—using only domestically designed processors. Built by Shenzhen's National Supercomputing Center, it surpasses the U.S. El Capitan system while avoiding restricted Western semiconductors. The milestone signals China's growing independence from foreign technology supply chains, a shift U.S. policymakers will weigh in technology strategy.