Supercomputers/Systems/Zenith
United Kingdom · operational · ai training
Zenith
Also known as Zenith (MI355X); Cambridge AIRR AMD system
Operated by University of Cambridge at University of Cambridge (CSD3) .
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 | - Dell Technologies PowerEdge servers | Dell Technologies | - | Reported | gov.ukdocs.hpc.cam.ac.uk |
| Accelerator | AMD Instinct MI355X Accelerators AMD Instinct MI355X GPUs, 8 per node with 288 GiB of memory each | AMD | - | Reported | docs.hpc.cam.ac.ukgov.uk |
| CPU | AMD EPYC 9575F CPUs 64C · 3.3 GHz 2x AMD EPYC 9575F processors per node | AMD | - | Reported | docs.hpc.cam.ac.uk |
The read
Cambridge's AMD Instinct MI355X system in the UK AI Research Resource, funded by a GBP 36 million government award announced on 26 January 2026 to raise Cambridge AIRR capacity sixfold, with Dell Technologies PowerEdge servers. Cambridge's documentation lists nodes of 8 MI355X GPUs (288 GiB each) and two AMD EPYC 9575F CPUs, and says the nodes entered early access service in August 2026. Node count, total GPU count and FLOPS are not published, so no quantities are recorded.
Site & facility
University of Cambridge (CSD3)
- Location
- Cambridge, United Kingdom
- Commissioned
- 2024
Change history
- 2026-10-07 Added Zenith (Cambridge AIRR)
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 |
|---|---|---|
| docs.hpc.cam.ac.uk | names system and part | AMD Instinct MI355X, AMD EPYC 9575F |
| gov.uk | does not name this system | AMD Instinct MI355X, AMD EPYC 9575F |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.