China reclaims top spot in supercomputer rankings with LineShine system
China has retaken first place in the global supercomputer rankings, with its LineShine system outperforming the American El Capitan.
According to the latest TOP500 list, announced in Hamburg, Germany, LineShine, housed at the National Supercomputing Centre in Shenzhen, achieved a performance of 2.198 exaflops. This means it can carry out more than 2 quintillion calculations per second, putting it roughly 20% ahead of runner-up El Capitan. It is the first time since 2017 that a Chinese machine has topped the rankings.
The list, which uses the LINPACK benchmark to measure speed, places El Capitan (California) and Frontier (Tennessee) second and third respectively. Although other countries, such as Germany, Japan and South Korea, are represented in the top 20, the rivalry between the US and China remains centre stage.
Industry experts suggest that LineShine’s success shows that China is capable of innovating despite US trade restrictions on high-end semiconductors. Jack Dongarra, one of the organisers of the TOP500 and a professor of computer science, noted that export controls may actually have spurred Beijing to invest heavily in domestic hardware–software integration and self-sufficiency.
Some analysts argue, however, that the TOP500 ranking does not provide the full picture of technological supremacy. Because the list mainly tracks government and academic systems, it leaves out the massive private clusters run by tech giants such as Alphabet, Meta and Amazon.
Some estimates suggest, for example, that private AI facilities such as xAI’s Colossus far exceed the performance of the highest-ranked public systems. Dongarra stressed that a single benchmark cannot take into account factors such as energy efficiency, software reliability or practical usefulness for research.
Despite these nuances, LineShine’s rise points to a narrowing gap in the technological race. While the US maintains a lead in producing advanced AI models, reports indicate that China is catching up and is already ahead in areas such as industrial robotics and patent filings.
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