10. Roadrunner, United States

Roadrunner at Los Alamos National Laboratory in New Mexico performs at 1.04 petaflop/s.

9. Tera 100, France

Tera 100 at the CEA (Commissariat à l’énergie atomique et aux énergies alternatives) in France performs at 1.05 petaflop/s.

8. Hopper, United States

The Hopper supercomputer, located at DOE’s National Energy Research Scientific Computing Center (NERSC) in California, is ranked eighth with 1.054 petaflop/s performances.

7. Pleiades, United States

Pleiades, located at NASA‘s Ames Research Center in Moffett Field, California, allows over 1,000 active users around the country advance knowledge about the Earth, solar system and the universe. Pleiades helps meet computing needs of NASA‘s aeronautics projects and other space operations. It has a performance at 1.09 petaflop/s.

Pleiades racks

6. Cielo, United States 

The Cielo supercomputer at Los Alamos National Laboratory in New Mexico performs at 1.11 petaflop/s.

5. Tsubame 2.0, Japan

Tsubame 2.0 at the Tokyo Institute of Technology is fifth most fast supercomputer in the world with 1.19 petaflop/s performance.

4. Nebulae, China 

The Nebulae supercomputer at China’s National Supercomputing Center in Shenzen is ranked fouth with 1.27 petaflop/s performance.

3. Jaguar, United States 

The Jaguar, a Cray supercomputer at the U.S. Department of Energy’s (DOE’s) Oak Ridge National Laboratory, is ranked No. 3 with 1.75 petaflop/s. 

2. Tianhe-1A, China

The Chinese supercomputer at the National Supercomputing Center in Tianjin, China, performs at 2.6 petaflop/s.

1. K Computer, Japan

Built by Fujitsu, the Japanese supercomputer at the RIKEN Advanced Institute for Computational Science (AICS) in Kobe, is capable of performing more than 8 quadrillion calculations per second (petaflop/s). “The K Computer is also more powerful than the next five systems on the list combined and also one of the most energy-efficient systems on the list.”