COMPUTE ATLAS Supercomputer supply-chain graph
1153 systems 482 sites Sourced data

Supercomputers/Systems/Firmus Southgate Melbourne

Australia · under construction · mixed

Firmus Southgate Melbourne

Also known as Project Southgate Melbourne

Operated by Firmus Technologies .

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
-
Rpeak
-
Rmax ÷ Rpeak
-
Cores
-
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 -
Firmus Technologies builds and operates the Southgate AI factory in Melbourne
Firmus Technologies
- Reported firmus.co
Accelerator NVIDIA GB300 NVL72
Accelerators
Approximately 18,400 NVIDIA GB300 GPUs for a multi-year hyperscale customer contract signed 2 March 2026
NVIDIA - Reported firmus.co

AI datacenter metrics

Figures beyond an accelerator count, each with who stated it. What can and cannot be compared across AI datacenters.

MetricValueAs ofBasisNoteSource
Accelerators 18,400 accelerators 2026-03 Design target 'Approximately 18,400' GB300 GPUs for the Melbourne site under a multi-year hyperscaler contract signed 2 Mar 2026. Plan. firmus.co

The read

The Melbourne deployment of Firmus's Project Southgate, a multi-year contract signed on 2 March 2026 with an unnamed global hyperscale customer to host about 18,400 NVIDIA GB300 GPUs; Firmus's earlier Southgate expansion page (October 2025) gave 18,500 GPUs and an April 2026 online target and described Melbourne and Tasmania as under construction, with up to 150 MW and 54,000 GB300 across both sites. Neither page states a megawatt figure for Melbourne alone or the exact site, so the site is left unlocated and no capacity claim is recorded. A September 2026 Firmus release says one Australian site and one Singapore site are operational without naming which, so the status here (as of the contract date) may be out of date. Both sources trace to Firmus, so the tier is reported.

Timeline

Change history

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 sourceResultFound on the page
firmus.conames system and partNVIDIA GB300 NVL72
itbrief.com.aunames system and partNVIDIA GB300 NVL72

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

Further reading