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

0 MW

Recorded capacity

With recorded MW

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Page

Countryreset

Germany 21

Metro

Frankfurt 17 Berlin 1 Limburg an der Lahn 1 Mainz 1 Munich 1

City

Frankfurt 17 Berlin 1 Limburg an der Lahn 1 Mainz 1 Munich 1

Operator

Colt DCS 5 Equinix 2 Global Switch 2 OVHcloud 2 CyrusOne 1 Digital Realty 1 EdgeConneX 1 Green Mountain 1 Iron Mountain Data Centers 1 Keppel Data Centres 1 NTT GDC 1 STACK Infrastructure 1 Telehouse 1 Vantage Data Centers 1

Facility type

Colocation 19 Sovereign 2

Operational status

Operational 17 Under Construction 3 Planned 1

Capacity classificationreset

Not disclosed 21

AI / GPU readinessreset

No accelerator disclosed 21

Verification status

Operator Confirmed 13 Publicly Reported 8

[Results · 1–21 of 21]

Sourced data-centre facilities matching the current filters
Facility	Operator	Metro	Type	Status	Recorded MW	Confidence
Equinix FR6	Equinix	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Equinix FR7	Equinix	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Digital Realty Frankfurt	Digital Realty	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
NTT Frankfurt	NTT GDC	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
CyrusOne Frankfurt	CyrusOne	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Vantage Frankfurt	Vantage Data Centers	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
STACK Frankfurt	STACK Infrastructure	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Telehouse Frankfurt	Telehouse	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Colt DCS Frankfurt City	Colt DCS	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Colt DCS Frankfurt West	Colt DCS	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Colt DCS Berlin 1 & 2	Colt DCS	Berlin, Germany	Colocation	Under Construction	Not publicly disclosed	High
Colt DCS Frankfurt 3	Colt DCS	Frankfurt, Germany	Colocation	Under Construction	Not publicly disclosed	High
Colt DCS Frankfurt 4 & 5	Colt DCS	Frankfurt, Germany	Colocation	Planned	Not publicly disclosed	High
Global Switch Frankfurt 1	Global Switch	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Global Switch Frankfurt 2	Global Switch	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Green Mountain FRA-Mainz	Green Mountain	Mainz, Germany	Colocation	Under Construction	Not publicly disclosed	High
Iron Mountain FRA-1 Frankfurt	Iron Mountain Data Centers	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
EdgeConneX Munich	EdgeConneX	Munich, Germany	Colocation	Operational	Not publicly disclosed	High
Keppel DC Frankfurt	Keppel Data Centres	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
OVHcloud Limburg (LIM)	OVHcloud	Limburg an der Lahn, Germany	Sovereign	Operational	Not publicly disclosed	High
OVHcloud Frankfurt	OVHcloud	Frankfurt, Germany	Sovereign	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