NVIDIA Cambridge-1 is a large GPU cluster operated by NVIDIA, located in the United Kingdom, in the private sector. It came online around June 2021. At that moment it ranked number 35 among known clusters.
It is built on 640 NVIDIA A100. That amounts to about 202 H100e of AI compute. The cluster draws roughly 0.55 MW. Its hardware is estimated at $54M.
Epoch AI rates the certainty of this record as confirmed.