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What are the fastest supercomputers?

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The Editors of Encyclopaedia Britannica

As of June 2026 the five fastest supercomputers in the world are LineShine in China; El Capitan, Frontier, and Aurora in the United States; and the JUPITER Booster in Germany. All these supercomputers have speeds in excess of 1018 quintillion floating-point operations per second (FLOPS), with LineShine operating at a maximum tested speed of 2,198,400 TFLOPS.