(Bloomberg) -- In a threat to U.S. technology dominance, the world’s fastest supercomputer is powered by Chinese-designed semiconductors for the first time. It’s a breakthrough for China’s attempts to reduce dependence on imported technology.

The Sunway TaihuLight supercomputer, located at the state-funded Chinese Supercomputing Center in Wuxi, Jiangsu province, is more than twice as powerful as the previous winner, according to TOP500, a research organization that compiles the rankings twice a year. The machine is powered by a SW26010 processor designed by Shanghai High Performance IC Design Center, TOP500 said Monday.

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