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GPU clusters

GSIC TSUBAME 2.5

Compute
8.4 H100e
Chips
4,224
First operational
Jun 1, 2014

GSIC TSUBAME 2.5 is a large GPU cluster operated by Tokyo Institute of Technology, located in Japan, in the public sector. It came online around June 2014. At that moment it ranked number 3 among known clusters.

It is built on 4,224 NVIDIA Tesla K20X. That amounts to about 8.4 H100e of AI compute. The cluster draws roughly 2.69 MW. Its hardware is estimated at $63M.

Epoch AI rates the certainty of this record as confirmed. 1408*3 = 4224 Top500 implies that there are at least 4140

Full record
Owner
Tokyo Institute of Technology
Users
Academia, Tokyo Tech
Sector
Public
Status
Existing
Country
Japan
Location
Ookayama, Japan
Primary chip
NVIDIA Tesla K20X
Primary chip count
4,224
Total AI chips
4,224
H100 equivalents
8.4
Power capacity
2.69 MW
Hardware cost
$63M
First operational
Jun 1, 2014
Rank when it came online
3
Certainty
Confirmed
More from Tokyo Institute of Technology
SourceEpoch AI, 'GPU Clusters'. Published online at epoch.ai. Retrieved 2026-07-29 from https://epoch.ai/data/gpu-clusters. Licensed under CC BY 4.0.
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