Companies/NEC
Tokyo, Japan
NEC
SX vector architecture, used in the Earth Simulator and continued in the SX-Aurora TSUBASA line.
Systems this company appears in
- Systems
- 43
- Aggregate Rmax
- 113.5 PFlop/s
- Aggregate power
- 15.41 MW
- First appearance
- 1991
- Most recent
- 2026-07
- Concentration
- 15%
systems it appears in
where disclosed
largest is AOBA-S
Aggregate Rmax is the sum of the systems this company supplies any part of. It is not revenue and not attributable share: an integrator and a memory vendor in the same machine both count its full FLOPS here. Attribution weighted by role is Phase 4.
Role breakdown
| Role | Systems | Rmax in those systems |
|---|---|---|
| Integrator | 43 | 113.5 PFlop/s |
| Accelerator | 5 | 51.28 PFlop/s |
| CPU | 13 | 169.06 TFlop/s |
| Interconnect | 8 | 167.33 TFlop/s |
| Storage | 3 | 35.86 TFlop/s |
| Cooling | 2 | 1.79 PFlop/s |
| Operating system | 8 | 168.42 TFlop/s |
Appearances
| System | Supplied as | Shipped under | Rmax | Rank |
|---|---|---|---|---|
| Sofia (VSC Tier-1) Belgium · 2026-07 | Integrator | NEC | 8.19 PFlop/s | unranked |
| Sirius (Tsukuba) Japan · 2026 | Integrator | NEC | 5.63 PFlop/s | unranked |
| Plasma Simulator Sosei Japan · 2025-07 | Integrator | NEC | - | unranked |
| DWD SX-Aurora (2025) Germany · 2025 | Integrator, Accelerator | NEC | 13.58 PFlop/s | #113 June 2025 → |
| CLAIX-2023 Germany · 2024-01 | Integrator | NEC | 5.24 PFlop/s | #229 June 2024 → |
| Camphor 3 Japan · 2023-10 | Integrator | NEC | 6.71 PFlop/s | #226 November 2025 → |
| AOBA-S Japan · 2023-08 | Integrator, Accelerator | NEC | 17.22 PFlop/s | #75 June 2024 → |
| Volkswagen LX HPC 224Rk-1 Norway · 2023 | Integrator | NEC | 2.78 PFlop/s | #310 November 2023 → |
| Laurel 3 Japan · 2023 | Integrator | NEC | - | unranked |
| Volkswagen HPC 124Rj-1 Norway · 2022 | Integrator | NEC | 2.96 PFlop/s | #246 June 2023 → |
| CARO Germany · 2021-11 | Integrator | NEC | 3.46 PFlop/s | #135 November 2021 → |
| SQUID Japan · 2021-05 | Integrator | NEC | 6.11 PFlop/s | #159 June 2025 → |
| Earth Simulator 4 Japan · 2021-03 | Integrator, Accelerator | NEC | 9.99 PFlop/s | #39 June 2021 → |
| AlphaCentauri Germany · 2021 | Integrator | NEC | 2.59 PFlop/s | #181 June 2021 → |
| JUSTUS 2 Germany · 2020-03-06 | Integrator, Storage | NEC | - | unranked |
| Raijin Japan · 2020 | Integrator, Accelerator | NEC | 7.89 PFlop/s | #33 November 2020 → |
| DWD SX-Aurora (2020) Germany · 2020 | Integrator, Accelerator | NEC | 2.60 PFlop/s | #140 November 2020 → |
| Cygnus Japan · 2019 | Integrator | NEC | 1.58 PFlop/s | #264 June 2019 → |
| CARA Germany · 2019 | Integrator, Cooling | NEC | 1.75 PFlop/s | #221 November 2019 → |
| CLAIX-2018 Germany · 2018 | Integrator | NEC | 2.48 PFlop/s | #92 June 2019 → |
| IMS Molecular Simulator Japan · 2017-10-01 | Integrator | NEC | 1.79 PFlop/s | #261 June 2020 → |
| AIST AI Cloud Japan · 2017 | Integrator | NEC | 961.00 TFlop/s | #3 June 2017 → |
| Sator France · 2017 | Integrator | NEC | 579.23 TFlop/s | #343 June 2017 → |
| BrENIAC Belgium · 2016 | Integrator | NEC | 548.00 TFlop/s | #197 June 2016 → |
| Earth Simulator 3 Japan · 2015 | Integrator, CPU | NEC | - | unranked |
| TSUBAME2.0 Japan · 2010-11 | Integrator | NEC | 1.19 PFlop/s | #4 November 2010 → |
| Earth Simulator 2 Japan · 2009-03 | Integrator, CPU, Interconnect, Operating system | NEC | 122.40 TFlop/s | #22 June 2009 → |
| Baku (HLRS) Germany · 2009 | Integrator | NEC | 50.79 TFlop/s | #77 June 2009 → |
| CPTEC Sun Fire Cluster Brazil · 2007 | Integrator | NEC | 4.51 TFlop/s | #418 June 2007 → |
| HLRS NEC SX-8 Germany · 2005 | CPU, Interconnect, Operating system, Integrator | NEC | 8.92 TFlop/s | #27 June 2005 → |
| CPTEC NEC SX-6 Brazil · 2002-12 | Integrator, CPU | NEC | 253.6 GFlop/s | #459 June 2003 → |
| Earth Simulator Japan · 2002-03 | Cooling, CPU, Integrator, Interconnect, Storage, Operating system | NEC | 35.86 TFlop/s | #1 June 2002 → |
| Osaka SX-5/128M8 Japan · 2001-01 | Integrator, CPU, Operating system | NEC | 1.19 TFlop/s | #8 June 2001 → |
| Tohoku SX-4/128H4 Japan · 1998-01 | Integrator, CPU | NEC | 244.0 GFlop/s | #13 June 1998 → |
| Osaka University SX-4 Japan · 1997-01 | Integrator, CPU, Interconnect | NEC | 61.7 GFlop/s | #19 November 1996 → |
| Toyota CRDL SX-4/20 Japan · 1996 | Integrator, CPU | NEC | 38.7 GFlop/s | #27 June 1996 → |
| HWW Stuttgart NEC SX-4/32 Germany · 1996 | Integrator, CPU, Interconnect | NEC | 61.7 GFlop/s | #10 June 1996 → |
| Tohoku SX-3/44R Japan · 1994-01 | Integrator, Operating system | NEC | 23.2 GFlop/s | #13 June 1994 → |
| AES NEC SX-3/44 Canada · 1991 | Integrator, CPU, Interconnect, Operating system | NEC | 20.0 GFlop/s | #6 June 1993 → |
| Pegasus (Tsukuba) Japan · | Integrator | NEC | 4.34 PFlop/s | #296 November 2025 → |
| Osaka SX-ACE Japan · | Integrator, CPU, Interconnect, Storage, Operating system | NEC | - | unranked |
| LiDO4 Germany · | Integrator | NEC | 3.14 PFlop/s | unranked |
| CSCS NEC SX-3/22 Switzerland · | Integrator, CPU, Interconnect, Operating system | NEC | 5.0 GFlop/s | #63 November 1993 → |
Parts supplied
| Part | Category | Generation | Released |
|---|---|---|---|
| NEC SX-Aurora TSUBASA Vector Engine | Accelerators | SX-Aurora | 2018 |
| NEC Earth Simulator crossbar | Interconnect | SX | 2002 |
| NEC SX-6 vector processor | CPUs | SX | 2002 |
| NEC Earth Simulator tape library | Storage | - | 2002 |
| NEC SUPER-UX | Operating systems | SUPER-UX | 2002 |
AI datacenters operated
| System | Status | Accelerators | Stated power (MW) |
|---|---|---|---|
| NEC AI Research Supercomputer | operational | - | - |
Figures come from the AI datacenter metrics; blank means none recorded.
Further reading
Power and cooling
Why air ran out at 20 kW a rack, how warm-water cooling removes the chillers, and what PUE conceals.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.