NHN Cloud Gwangju AI

Also known as NHN Cloud Gwangju National AI Data Center

Operated by NHN Cloud at NHN Cloud Gwangju National AI Data Center .

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: 12.84 PFlop/s
Rpeak: 20.58 PFlop/s
Rmax ÷ Rpeak: 62.4%
Cores: 43,776
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	- Dell PowerEdge XE9680	Dell Technologies DELLNYSE	-	Verified	top500.org dell.com
Accelerator	NVIDIA H100 SXM5 Accelerators CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W NVIDIA H100 80GB, eight per PowerEdge XE9680 server	NVIDIA NVDANASDAQ	-	Verified	top500.org dell.com
CPU	Intel Xeon Platinum 8468 CPUs x86-64 · 48C · 2.1 GHz · Intel 7 · 350 W Intel Xeon Platinum 8468 48C 2.1GHz	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds Infiniband NDR	NVIDIA NVDANASDAQ	-	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

NHN Cloud's H100 system at the Gwangju National AI Data Center in Buk-gu, built under a Ministry of Science and ICT and Gwangju City AI industry programme and separate from the later NIPA B200 clusters at FactoryX Seoul. TOP500 lists Dell PowerEdge XE9680 servers with Xeon Platinum 8468 48C 2.1GHz, NVIDIA H100 80GB and InfiniBand NDR on Ubuntu 22.04.3, with 43,776 cores, Rmax 12.84 and Rpeak 20.58 PFlop/s; it ranked 97th in November 2024 and 160th in June 2026. Dell's 3 November 2023 release confirms XE9680 servers with eight H100 GPUs each and a predicted PUE of 1.33. e4ds news and W.Media give an October 2023 opening, a total computing capacity of 88.5 PF and 107 PB of storage for the whole facility; that capacity is an AI-precision figure covering more than the TOP500 run, so it is not recorded as FLOPS. Server and GPU counts are not stated.

Timeline

2023-08 Announced source
2023-10 First operational source
2024-11 List debut at #97 (November 2024) source

Public list appearances

Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.

#97: TOP500, November 2024 →

Site & facility

NHN Cloud Gwangju National AI Data Center

Location: Gwangju (Buk-gu), South Korea
Commissioned: 2023

e4ds.com dell.com

Change history

2026-10-04 Added NHN Cloud Gwangju AI (nhn-cloud)

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	Intel Xeon Platinum 8468, NVIDIA H100 SXM5, NVIDIA InfiniBand NDR (Quantum-2), Ubuntu Server
dell.com	blocked our fetch	-

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.