What is an AI datacenter?

An AI datacenter is a facility purpose-built or retrofitted for GPU and accelerator workloads — typically at rack densities above 30 kW, with liquid-cooling readiness and high-bandwidth fabric (InfiniBand NDR, NVLink, or Spectrum-X). At least 40% of IT load runs AI training or inference on GPUs such as NVIDIA H100, H200, B200, or GB200 NVL72.

Which datacenter has the most GPUs?

As of 2026, xAI Colossus in Memphis, Tennessee holds the title of the world's largest single-site GPU deployment, with more than 200,000 NVIDIA H100 and H200 GPUs in one InfiniBand domain. Meta Hyperion (Louisiana) and OpenAI Stargate Abilene (Texas) are scaling toward gigawatt-class deployments that will overtake it within the next 18 months.

What is the largest AI cluster?

xAI Colossus is the largest contiguous AI training cluster in 2026, exceeding 200,000 NVIDIA H100/H200 GPUs on a single InfiniBand NDR 400G fabric. Meta's Hyperion build and OpenAI's Stargate program are constructing multi-site fabrics that will exceed one million accelerators across coupled campuses by 2027.

Which GPU cloud is cheapest for H100?

On-demand: Together AI ($1.75/hr) and Voltage Park ($1.89/hr) lead. Reserved 1-year: Voltage Park ($1.20/hr) and Crusoe ($1.39/hr) are typically lowest. AWS p5 sits at the top of the price stack at ~$4.10/hr on-demand.

How is Datacenter.computer different from a datacenter directory?

Datacenter.computer is an agent-readable intelligence layer, not a directory. It normalizes capacity, power, fabric and location across 833 sourced facilities and 40 operators into a single queryable graph for AI agents, traders and procurement teams.

[D0] Discovery · Directory

Data centre directory · 833 sourced facilities

Every individually sourced facility record in the index, searchable and filterable. All filters and pages are plain links, so the full dataset is crawlable without JavaScript.

[AI Summary]

Datacenter.computer indexes 833 individually sourced data-centre facilities across 53 countries, 290 metros and 40 operators, with 4,536.77 MW of recorded capacity. Each record carries an operational status, capacity basis, verification status and confidence level; unknown fields are published as "Not publicly disclosed" rather than estimated. Modelled metro-level market signals are held in a separate research layer and never appear here as facilities.

Matching facilities

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USA 10 United Kingdom 2 Australia 1 Brazil 1 Canada 1 France 1 Germany 1 Hong Kong 1 India 1 Ireland 1 Italy 1 Japan 1 Netherlands 1 Singapore 1 South Africa 1 South Korea 1 Spain 1 Sweden 1 Switzerland 1

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Operatorreset

Digital Realty 29

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High 29

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Publicly Reported 29

[Results · 1–29 of 29]

Sourced data-centre facilities matching the current filters
Facility	Operator	Metro	Type	Status	Recorded MW	Confidence
Digital Realty Ashburn	Digital Realty	Ashburn, VA, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Chicago	Digital Realty	Chicago, IL, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Dallas	Digital Realty	Dallas, TX, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty New York	Digital Realty	New York, NY, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty New Jersey	Digital Realty	Secaucus, NJ, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Silicon Valley	Digital Realty	Santa Clara, CA, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Los Angeles	Digital Realty	Los Angeles, CA, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Seattle	Digital Realty	Seattle, WA, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Phoenix	Digital Realty	Phoenix, AZ, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Atlanta	Digital Realty	Atlanta, GA, USA	Colocation	Operational	Not publicly disclosed	High
Digital Realty Toronto	Digital Realty	Toronto, ON, Canada	Colocation	Operational	Not publicly disclosed	High
Digital Realty São Paulo	Digital Realty	São Paulo, Brazil	Colocation	Operational	Not publicly disclosed	High
Digital Realty London	Digital Realty	London, UK, United Kingdom	Colocation	Operational	Not publicly disclosed	High
Digital Realty Slough	Digital Realty	Slough, UK, United Kingdom	Colocation	Operational	Not publicly disclosed	High
Digital Realty Frankfurt	Digital Realty	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Digital Realty Amsterdam	Digital Realty	Amsterdam, Netherlands	Colocation	Operational	Not publicly disclosed	High
Digital Realty Paris	Digital Realty	Paris, France	Colocation	Operational	Not publicly disclosed	High
Digital Realty Dublin	Digital Realty	Dublin, Ireland	Colocation	Operational	Not publicly disclosed	High
Digital Realty Milan	Digital Realty	Milan, Italy	Colocation	Operational	Not publicly disclosed	High
Digital Realty Madrid	Digital Realty	Madrid, Spain	Colocation	Operational	Not publicly disclosed	High
Digital Realty Zurich	Digital Realty	Zurich, Switzerland	Colocation	Operational	Not publicly disclosed	High
Digital Realty Stockholm	Digital Realty	Stockholm, Sweden	Colocation	Operational	Not publicly disclosed	High
Digital Realty Johannesburg	Digital Realty	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Digital Realty Singapore	Digital Realty	Singapore, Singapore	Colocation	Operational	Not publicly disclosed	High
Digital Realty Hong Kong	Digital Realty	Hong Kong, Hong Kong	Colocation	Operational	Not publicly disclosed	High
Digital Realty Tokyo	Digital Realty	Tokyo, Japan	Colocation	Operational	Not publicly disclosed	High
Digital Realty Sydney	Digital Realty	Sydney, Australia	Colocation	Operational	Not publicly disclosed	High
Digital Realty Mumbai	Digital Realty	Mumbai, India	Colocation	Operational	Not publicly disclosed	High
Digital Realty Seoul	Digital Realty	Seoul, South Korea	Colocation	Operational	Not publicly disclosed	High

Counts are computed live from the sourced facility index. Fields without a public basis show “Not publicly disclosed”. See the methodology, the data dictionary and the public API.

[Knowledge Graph]

Company → Datacenter → GPU → Customer → Industry

Every entity on this site is cross-linked. Follow the graph from operators down to specific facilities, GPU clusters, customers, and sectoral context.

Data centre directory · 833 sourced facilities

[Browse by country · 53]

Company → Datacenter → GPU → Customer → Industry