Supercomputers/Systems/Teton
USA · operational · hpc
Teton
Operated by INL .
Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.
Measured performance
- Rmax
- 20.76 PFlop/s
- Rpeak
- 28.31 PFlop/s
- Rmax ÷ Rpeak
- 73.3%
- Cores
- 393,216
- Power
- 1.56 MW
- Per watt
- 13.3 GF/W
Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.
What this machine is made of
One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.
| Role | Part | Supplier at build | Quantity | Confidence | Source |
|---|---|---|---|---|---|
| Integrator | - HPE Cray EX 4000 | Hewlett Packard Enterprise | - | Reported | top500.orgexecutivegov.com |
| CPU | AMD EPYC 9005 (Turin) CPUs x86-64 · 192C · 2.7 GHz · TSMC N3E · 500 W AMD EPYC 9965 192C 2.25GHz | AMD | - | Reported | top500.org |
| Interconnect | HPE Slingshot-11 Interconnect Dragonfly · 200 Gb/s per port · Around 2 microseconds Slingshot-11 | Hewlett Packard Enterprise | - | Reported | top500.org |
| Operating system | Red Hat Enterprise Linux Operating systems Linux distribution · Open source, commercial support subscription RHEL 9.5 | Red Hat | - | Reported | top500.org |
The read
CPU-only HPE Cray EX 4000 system at Idaho National Laboratory for high-fidelity nuclear reactor and multiphysics simulation, four times the capacity of the earlier Sawtooth. TOP500 lists AMD EPYC 9965 192C 2.25GHz processors over Slingshot-11 running RHEL 9.5, installed 2025, with Rmax 20.76 PFlop/s, Rpeak 28.31 PFlop/s, 393,216 cores and 1,564.6 kW; it debuted at rank 85 on the November 2025 list and was 103rd in June 2026. ExecutiveGov, relaying INL, gives 1,024 compute nodes of 384 cores each (393,216 cores), delivery in September 2025 and user availability in January 2026 at INL's Collaborative Computing Center. The tier is reported because the ExecutiveGov piece is a secondary report of the lab's announcement.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Change history
- 2026-10-02 Added Teton
Source check
We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.
| Cited source | Result | Found on the page |
|---|---|---|
| top500.org | names system and part | AMD EPYC 9005 (Turin), HPE Slingshot-11 |
| executivegov.com | names system only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.