Supercomputers/Systems/Yep1
USA · operational · mixed
Yep1
Also known as Ahrefs Yep1
Operated by Ahrefs .
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
- 23.32 PFlop/s
- Rpeak
- 34.58 PFlop/s
- Rmax ÷ Rpeak
- 67.4%
- Cores
- 73,584
- Power
- -
- Per watt
- - 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 | - NVIDIA DGX H100 | NVIDIA | - | Reported | top500.org |
| Accelerator | NVIDIA H100 SXM5 Accelerators CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W NVIDIA H100 SXM5 80GB | NVIDIA | - | Reported | top500.org |
| CPU | Intel Xeon Platinum 8480C CPUs x86-64 · 56C · 2 GHz · Intel 7 · 350 W Intel Xeon Platinum 8480C 56C 3.8GHz | Intel | - | Reported | top500.org |
| Interconnect | NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds Infiniband NDR400 | NVIDIA | - | Reported | top500.org |
| Operating system | Ubuntu Server Operating systems Linux distribution · Open source, free with paid support tiers Ubuntu 22.04.3 LTS | Canonical | - | Reported | top500.org |
The read
An NVIDIA DGX H100 system at Ahrefs US DC (Intel Xeon Platinum 8480C 56C hosts, NVIDIA H100 SXM5 80GB, InfiniBand NDR400, Ubuntu 22.04.3), listed on the TOP500 with 73,584 cores, Rmax 23.32 PFlop/s and Rpeak 34.58 PFlop/s. It debuted at rank 34 on June 2024, then ranked 53, 68, 75 and 92 on the following lists through June 2026; the first appearance is recorded here. Ahrefs' about page confirms the company owns the Yep search engine and says nothing of a supercomputer, so TOP500 is the only hardware source, the data center location is not published and the purpose is not stated.
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
- 2026-10-04 Added Yep1, Ahrefs' NVIDIA DGX H100 system
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 |
|---|---|---|
| ahrefs.com | does not name this system | - |
| top500.org | names system and part | NVIDIA H100 SXM5, Intel Xeon Platinum 8480C, NVIDIA InfiniBand NDR (Quantum-2), Ubuntu Server |
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
Why accelerators exist, what the memory hierarchy costs, and how the CPU and accelerator merged onto one package.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.