On the same day that Apple announced its plan to transition to its own silicon on Mac, the Top500 crowned an ARM-based build as the world's most powerful supercomputer. The announcement marks the first time a system with ARM processors has debuted on the number one spot on the list. What's more, the supercomputer is located in Japan, not the US or China like so many of the systems that have dominated the list in recent years.
At the heart of the RIKEN Center for Computational Science's Fugaku supercomputer is Fujitsu's 48-core A64FX system-on-a-chip. Working together, 158,976 of these chips put up a benchmark of 415.5 petaflops and a peak performance of 1 exaflop. To put that performance in perspective, Oak Ridge National Lab's Summit supercomputer in Tennessee was previously number one on the list with 148.8 petaflops of computing power, making Fugaku 2.8 times more powerful than that system.