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.

777

Matching facilities

4,536.77 MW

Recorded capacity

101

With recorded MW

12 / 16

Page

Country

Metro

City

Operator

Facility typereset

Colocation 777

Operational status

Operational 693 Under Construction 56 Planned 26 Announced 2

Capacity classification

Not disclosed 676 Small (<50 MW) 79 Mid (50–249 MW) 18 Large (250–999 MW) 4

Confidence levelreset

High 777

Verification status

Operator Confirmed 564 Publicly Reported 213

[Results · 551–600 of 777]

Sourced data-centre facilities matching the current filters
Facility	Operator	Metro	Type	Status	Recorded MW	Confidence
Global Switch Madrid 2	Global Switch	Madrid, Spain	Colocation	Operational	Not publicly disclosed	High
Global Switch Amsterdam 1	Global Switch	Amsterdam, Netherlands	Colocation	Operational	Not publicly disclosed	High
Global Switch Amsterdam 2	Global Switch	Amsterdam, Netherlands	Colocation	Operational	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
Global Switch Hong Kong	Global Switch	Hong Kong, Hong Kong	Colocation	Operational	Not publicly disclosed	High
Global Switch Singapore 1	Global Switch	Singapore, Singapore	Colocation	Operational	Not publicly disclosed	High
Global Switch Singapore 2	Global Switch	Singapore, Singapore	Colocation	Operational	Not publicly disclosed	High
Global Switch Johor	Global Switch	Johor, Malaysia	Colocation	Announced	Not publicly disclosed	High
Global Switch Bangkok	Global Switch	Bangkok, Thailand	Colocation	Announced	Not publicly disclosed	High
Green Mountain SVG-Rennesøy	Green Mountain	Stavanger, Norway	Colocation	Operational	Not publicly disclosed	High
Green Mountain TEL-Rjukan	Green Mountain	Rjukan, Norway	Colocation	Operational	Not publicly disclosed	High
Green Mountain OSL-Enebakk	Green Mountain	Enebakk, Norway	Colocation	Operational	Not publicly disclosed	High
Green Mountain OSL-Hamar	Green Mountain	Hamar, Norway	Colocation	Operational	Not publicly disclosed	High
Green Mountain LON-East	Green Mountain	London, United Kingdom	Colocation	Operational	Not publicly disclosed	High
Green Mountain FRA-Mainz	Green Mountain	Mainz, Germany	Colocation	Under Construction	Not publicly disclosed	High
Teraco JB1 Isando	Teraco	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco JB2 Isando	Teraco	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco JB3 Bredell	Teraco	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco JB4 Bredell	Teraco	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco JB5 Bredell	Teraco	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco Johannesburg Teleport	Teraco	Johannesburg, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco CT1 Rondebosch	Teraco	Cape Town, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco CT2 Brackenfell	Teraco	Cape Town, South Africa	Colocation	Operational	Not publicly disclosed	High
Teraco DB1 Riverhorse Valley	Teraco	Durban, South Africa	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-1 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-2 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-3 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-4 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-5 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-6 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain VA-7 Manassas	Iron Mountain Data Centers	Manassas, VA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain WPA-1 Boyers (The Underground)	Iron Mountain Data Centers	Boyers, PA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain WPA-2 Boyers	Iron Mountain Data Centers	Boyers, PA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain WPA-3 Boyers	Iron Mountain Data Centers	Boyers, PA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain AZP-1 Phoenix	Iron Mountain Data Centers	Phoenix, AZ, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain AZP-2 Phoenix	Iron Mountain Data Centers	Phoenix, AZ, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain AZS-1 Scottsdale	Iron Mountain Data Centers	Scottsdale, AZ, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain NJE-1 Edison	Iron Mountain Data Centers	Edison, NJ, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain OHC-1 Columbus	Iron Mountain Data Centers	Columbus, OH, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain TXD-1 Dallas	Iron Mountain Data Centers	Dallas, TX, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain CAS-1 Santa Clara	Iron Mountain Data Centers	Santa Clara, CA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain MAB-1 Boston	Iron Mountain Data Centers	Boston, MA, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain CODN-1 Denver	Iron Mountain Data Centers	Denver, CO, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain MIK-1 Kalamazoo	Iron Mountain Data Centers	Kalamazoo, MI, USA	Colocation	Operational	Not publicly disclosed	High
Iron Mountain LON-1 Slough	Iron Mountain Data Centers	Slough, United Kingdom	Colocation	Operational	Not publicly disclosed	High
Iron Mountain LON-2 London	Iron Mountain Data Centers	London, United Kingdom	Colocation	Operational	Not publicly disclosed	High
Iron Mountain AMS-1 Amsterdam	Iron Mountain Data Centers	Amsterdam, Netherlands	Colocation	Operational	Not publicly disclosed	High
Iron Mountain FRA-1 Frankfurt	Iron Mountain Data Centers	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
Iron Mountain MAD-1 Madrid	Iron Mountain Data Centers	Madrid, Spain	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