Supercomputers/Systems/Christofari Neo
Russia · operational · ai training
Christofari Neo
Operated by Sberbank at SberCloud (undisclosed site, Russia) .
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
- 11.95 PFlop/s
- Rpeak
- 14.91 PFlop/s
- Rmax ÷ Rpeak
- 80.1%
- Cores
- 98,208
- 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 A100 based system (TOP500 manufacturer: NVIDIA) | NVIDIA | - | Reported | top500.org |
| Accelerator | NVIDIA A100 (in DGX A100) Accelerators NVIDIA A100 80GB GPUs in NVIDIA DGX A100 nodes (node and GPU count not published in fetched sources) | NVIDIA | - | Verified | top500.orgfinancialit.net |
| CPU | AMD EPYC 7742 (Rome) CPUs x86-64 · 64C · 2.25 GHz · 7 nm · 225 W AMD EPYC 7742 64C 2.25GHz (TOP500 listing) | AMD | - | Reported | top500.org |
| Interconnect | - InfiniBand (generation not stated in the TOP500 listing) | NVIDIA | - | Reported | top500.org |
The read
Christofari Neo is Sberbank and SberCloud's second AI supercomputer, presented on 11 November 2021 at the AI Journey 2021 conference as a successor to Christofari. The TOP500 entry (SberCloud, manufacturer NVIDIA) lists NVIDIA DGX A100 nodes with AMD EPYC 7742 64C 2.25GHz CPUs, NVIDIA A100 80GB GPUs and InfiniBand, 98,208 cores, Rmax 11.95 PFlop/s and Rpeak 14.91 PFlop/s; it entered the November 2021 list at rank 43 and the TOP500 page reports rank 167 on the June 2026 list, which is the basis for the status date. Sberbank's announcement, as carried by Financial IT, independently gives 11.95 PFLOPs and NVIDIA A100 80 GB GPUs, so the tier is verified. Neither fetched source publishes the DGX A100 node or GPU count, so no accelerator quantity is recorded, and the site is left unlocated for the same reason as Christofari. Power is not listed by TOP500.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-10-01 Added Christofari Neo (Sberbank)
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 |
|---|---|---|
| financialit.net | names system and part | NVIDIA A100 (in DGX A100) |
| top500.org | names system and part | NVIDIA A100 (in DGX A100), AMD EPYC 7742 (Rome) |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
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.
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.