But Nvidia says the new system in Tianjin—which is being formally announced Thursday at an event in China—was able to reach 2.5 petaflops. That is a measure of calculating speed ordinarily translated into a thousand trillion operations per second. It is more than 40% higher than the mark set last June by a system called Jaguar at Oak Ridge National Laboratory that previously stood at No. 1 on a twice-yearly ranking of the 500 fastest supercomputers.
"I don't know of another system that is going to be anywhere near the performance and the power of this machine" in China, said Jack Dongarra, a supercomputer expert on the Oak Ridge research staff who is a professor at the University of Tennessee and recently inspected the system in Tianjin last week. "It is quite impressive."