For the last half-decade, the most powerful supercomputers in the world have been in China. That has changed with the US now the home of the world’s most powerful supercomputer called Summit. This beast of a supercomputer can operate at peak performance of 200 petaflops.
200 petaflops is 200 million billion calculations per second. That is a hard number to wrap your brain around so MIT Technology Review puts it in more perspective. To do that many calculations by hand every person on Earth would need to do a calculation every second of every day for 305 days to crunch the same amount of data that Summit does in a blink of an eye.