CHINESE SYNDROME: Chinese institutions have been largely absent from the TOP500 HPC rankings since 2023, when worsening US-China relations led Beijing to stop submitting its most capable systems to the list. Now, the Asian country is hitting back with a vengeance thanks to a brand-new supercomputer system ranked as the most powerful in the world.
The TOP500 project has unveiled the 67th edition of its biannual ranking of the world's most powerful high-performance computing (HPC) systems. Announced at the ISC 2026 conference in Hamburg, Germany, the new list marks the surprise debut of LineShine, a previously unannounced Chinese machine that enters straight at No. 1, becoming the officially acknowledged most powerful supercomputer on the planet.
LineShine posted a 2.198 Exaflop/s result on the High Performance Linpack (HPL) benchmark, which the TOP500 organization says represents roughly 80% of the system's theoretical peak performance of 2.736 Exaflop/s. It is the first HPC system in history to exceed two exaflops of sustained double-precision performance – and it achieved this milestone using an all-CPU design, with no GPU accelerators anywhere in the stack.
The system was installed at the National Supercomputing Centre in Shenzhen (NSCS) and built around the custom "LingKun" platform, using "LX2" processors thought to be designed by Huawei. The LX2 is based on the Armv9 architecture, with each chip integrating two compute dies (304 cores in total) plus eight on-package HBM stacks delivering 32 GB of high-bandwidth memory. The platform's 13.79 million computing cores are linked by the proprietary LingQi interconnect and run China's Kylin OS, a Linux-based operating system.
