Supercomputers/Systems/Honeywell x3650 Cluster
USA · operational · hpc
Honeywell x3650 Cluster
Also known as Honeywell xSeries x3650 Cluster
Operated by Honeywell .
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
- 7.60 TFlop/s
- Rpeak
- 14.37 TFlop/s
- Rmax ÷ Rpeak
- 52.9%
- Cores
- 1,540
- Power
- 149 kW
- Per watt
- 0.1 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 | - IBM xSeries x3650 Cluster | IBM | - | Reported | top500.org |
| CPU | - Intel Xeon 5140 2C 2.33GHz, 1,540 cores | Intel | - | Reported | top500.org |
The read
Honeywell's IBM xSeries x3650 cluster of 1,540 dual-core Xeon 5140 (2.33GHz) cores on Gigabit Ethernet running Linux, at 7.60 TFlop/s Rmax and 14.37 TFlop/s Rpeak with 149 kW listed. It appeared once, at rank 316 in November 2007, Honeywell's best TOP500 position after a 216th place for an iPSC/860 in 1994. A similar 1,280-core IBM BladeCenter HS21 cluster was also listed for Honeywell in 2007 (system 175356). The site page gives only the United States, so the system is left unlocated. Status is recorded as of that single list appearance.
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 Honeywell's IBM x3650 cluster
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 only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.