By country
Supercomputers in United States
Machines operated in United States have held first place on 37 TOP500 lists, across 12 different systems — from June 1993 to June 2025.
Machines
El Capitan
1.742 EFlop/s · number one for 2 lists
Frontier
1.206 EFlop/s · number one for 5 lists
Summit
148.60 PFlop/s · number one for 4 lists
Titan
17.59 PFlop/s · number one for 1 list
Sequoia
16.32 PFlop/s · number one for 1 list
Jaguar
1.76 PFlop/s · number one for 2 lists
Roadrunner
1.10 PFlop/s · number one for 3 lists
BlueGene/L
478.200 TFlop/s · number one for 7 lists
ASCI White
7.226 TFlop/s · number one for 3 lists
ASCI Red
2.379 TFlop/s · number one for 7 lists
XP/S140 Paragon
143.4 GFlop/s · number one for 1 list
CM-5/1024
59.7 GFlop/s · number one for 1 list
Every list held
| List | System | Operator |
|---|---|---|
| June 2025 | El Capitan | Lawrence Livermore National Laboratory |
| November 2024 | El Capitan | Lawrence Livermore National Laboratory |
| June 2024 | Frontier | Oak Ridge National Laboratory |
| November 2023 | Frontier | Oak Ridge National Laboratory |
| June 2023 | Frontier | Oak Ridge National Laboratory |
| November 2022 | Frontier | Oak Ridge National Laboratory |
| June 2022 | Frontier | Oak Ridge National Laboratory |
| November 2019 | Summit | Oak Ridge National Laboratory |
| June 2019 | Summit | Oak Ridge National Laboratory |
| November 2018 | Summit | Oak Ridge National Laboratory |
| June 2018 | Summit | Oak Ridge National Laboratory |
| November 2012 | Titan | Oak Ridge National Laboratory |
| June 2012 | Sequoia | Lawrence Livermore National Laboratory |
| June 2010 | Jaguar | Oak Ridge National Laboratory |
| November 2009 | Jaguar | Oak Ridge National Laboratory |
| June 2009 | Roadrunner | Los Alamos National Laboratory |
| November 2008 | Roadrunner | Los Alamos National Laboratory |
| June 2008 | Roadrunner | Los Alamos National Laboratory |
| November 2007 | BlueGene/L | Lawrence Livermore National Laboratory |
| June 2007 | BlueGene/L | Lawrence Livermore National Laboratory |
| November 2006 | BlueGene/L | Lawrence Livermore National Laboratory |
| June 2006 | BlueGene/L | Lawrence Livermore National Laboratory |
| November 2005 | BlueGene/L | Lawrence Livermore National Laboratory |
| June 2005 | BlueGene/L | Lawrence Livermore National Laboratory |
| November 2004 | BlueGene/L | Lawrence Livermore National Laboratory |
| November 2001 | ASCI White | Lawrence Livermore National Laboratory |
| June 2001 | ASCI White | Lawrence Livermore National Laboratory |
| November 2000 | ASCI White | Lawrence Livermore National Laboratory |
| June 2000 | ASCI Red | Sandia National Laboratories |
| November 1999 | ASCI Red | Sandia National Laboratories |
| June 1999 | ASCI Red | Sandia National Laboratories |
| November 1998 | ASCI Red | Sandia National Laboratories |
| June 1998 | ASCI Red | Sandia National Laboratories |
| November 1997 | ASCI Red | Sandia National Laboratories |
| June 1997 | ASCI Red | Sandia National Laboratories |
| June 1994 | XP/S140 Paragon | Sandia National Laboratories |
| June 1993 | CM-5/1024 | Los Alamos National Laboratory |