TSUBAME4.0

Institute of Science Tokyo offers TSUBAME4.0 for university research and shared scientific computing.

TSUBAME4.0 is an operational GPU cluster run by Institute of Science Tokyo in Tokyo, Japan. It has 960 NVIDIA H100 SXM5 GPUs installed.

Supercomputer

Verified 11 Nov 2026

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Facts

Source per value

Owner / operator Organization that owns or operates the GPUs. Hosting and facility roles are listed under Partners.: Institute of Science Tokyo 1
GPU maker NVIDIA, AMD or Intel, taken from the GPU model.: NVIDIA 1
GPU model Accelerator model or family as disclosed. A GH200 is one GPU on a superchip; an MI300A is an APU that contains a GPU.: NVIDIA H100 SXM5 1
GPUs installed Physical GPUs in the cluster, from the operator or a deterministic sum of disclosed quantities (nodes × GPUs per node). Planned counts, H100-equivalents and unaudited press totals are never counted here.: 960 1
Location City, region and country where the cluster sits. Empty when the operator does not name the site.: Tokyo, Japan 1
Country Country of the cluster, taken from the location.: Japan 1
Live power MW Power in service, in megawatts of IT load where the source says so. Company figures are marked in the notes; Epoch AI satellite estimates are labelled as estimates.: Not published
Status operational = running and named as such by the operator or a primary source; partly operational = a phase is live and more is coming; under construction = building underway; announced = disclosed or contracted with no confirmed go-live.: operational 1
Status notes The source’s wording on status, with the date.: Listed in the operator’s current user documentation. 1
Interconnect Cluster network fabric.: InfiniBand NDR, four 200 Gbps links per node 1
Compute nodes nodes Compute nodes in the system or partition.: 240 1

Sources

gsic.titech.ac.jp accessed 2026-11-11

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