Europe’s First Supercomputer Reaches 1 ExaFLOP/s
Nov. 17, 2025

JUPITER at Forschungszentrum Jülich has become the first supercomputer in Europe to reach the milestone of 1 ExaFLOP/s – equivalent to one quintillion, or 1,000,000,000,000,000,000 computing operations per second. At the same time, JUPITER ranks as the fourth-fastest supercomputer in the world and the most energy-efficient system in the Exascale class, according to the TOP500 list of the world’s fastest supercomputers presented today at the Supercomputing Conference (SC25) in St. Louis. Not only does the system represent a technological milestone for Europe, it has also already contributed to outstanding scientific results during its early access phase.