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 pricing, capacity, power, fabric, and latency across 240+ facilities and 40+ operators into a single queryable graph for AI agents, traders, and procurement teams.

How many datacenters are in Johannesburg?

41 indexed AI-capable datacenters, totaling 626 MW.

Which operators run datacenters in Johannesburg?

Teraco, Microsoft Azure, Open Access Data Centres, MDXi, Raxio, Batelco, Gulf Data Hub, Khazna, Rack Centre, Turkcell, Moro Hub, PAIX, iColo, Wingu Africa, stc Center3, N+ONE Datacenters, Ooredoo, Telecom Egypt, Africa Data Centres

[DC.COMPUTER] Layer 3 · City · South Africa

AI Datacenters in

Every indexed AI and GPU datacenter in Johannesburg, South Africa.

Johannesburg

[AI Summary]

Johannesburg, South Africa hosts 41 AI-capable datacenters totaling 626 MW of IT capacity, operated by 19 companies.

Facilities

626 MW

Total IT

Operators

[Facilities · 41]

Facility	Operator	Location	GPU	MW	PUE
Teraco JB1	Teraco	Johannesburg, South Africa	Mixed	38	1.42
Azure South Africa N	Microsoft Azure	Johannesburg, South Africa	H100	60	1.40
Open Access Data Centres JOHANNESBURG1	Open Access Data Centres	Johannesburg, South Africa	—	6	1.44
Open Access Data Centres JOHANNESBURG2 Annex	Open Access Data Centres	Johannesburg, South Africa	B200	6	1.41
MDXi JOHANNESBURG3 West	MDXi	Johannesburg, South Africa	—	3	1.31
Raxio JOHANNESBURG4 Central	Raxio	Johannesburg, South Africa	—	10	1.48
Batelco JOHANNESBURG5 East	Batelco	Johannesburg, South Africa	—	11	1.50
Batelco JOHANNESBURG6 North	Batelco	Johannesburg, South Africa	—	24	1.51
Raxio JOHANNESBURG7 East	Raxio	Johannesburg, South Africa	B200	4	1.42
Raxio JOHANNESBURG8 North	Raxio	Johannesburg, South Africa	—	16	1.54
Open Access Data Centres JOHANNESBURG9 Annex	Open Access Data Centres	Johannesburg, South Africa	—	6	1.44
Open Access Data Centres JOHANNESBURG10 West	Open Access Data Centres	Johannesburg, South Africa	—	17	1.21
Gulf Data Hub JOHANNESBURG11 South	Gulf Data Hub	Johannesburg, South Africa	MI300X	8	1.47
Khazna JOHANNESBURG12 Annex	Khazna	Johannesburg, South Africa	—	12	1.49
Rack Centre JOHANNESBURG13 South	Rack Centre	Johannesburg, South Africa	—	5	1.39
Turkcell JOHANNESBURG14 South	Turkcell	Johannesburg, South Africa	—	12	1.49
Moro Hub JOHANNESBURG15 Park	Moro Hub	Johannesburg, South Africa	—	18	1.25
PAIX JOHANNESBURG16 Park	PAIX	Johannesburg, South Africa	B200	20	1.22
Moro Hub JOHANNESBURG17 Central	Moro Hub	Johannesburg, South Africa	H100	13	1.43
iColo JOHANNESBURG18 South	iColo	Johannesburg, South Africa	B200	22	1.27
Wingu Africa JOHANNESBURG19	Wingu Africa	Johannesburg, South Africa	H100	11	1.54
Khazna JOHANNESBURG20 South	Khazna	Johannesburg, South Africa	H200	3	1.38
stc Center3 JOHANNESBURG21 Annex	stc Center3	Johannesburg, South Africa	—	14	1.52
Rack Centre JOHANNESBURG22 Campus	Rack Centre	Johannesburg, South Africa	—	27	1.40
Turkcell JOHANNESBURG23 East	Turkcell	Johannesburg, South Africa	—	26	1.33
N+ONE Datacenters JOHANNESBURG24 Central	N+ONE Datacenters	Johannesburg, South Africa	—	11	1.48
stc Center3 JOHANNESBURG25 West	stc Center3	Johannesburg, South Africa	H100	4	1.38
Wingu Africa JOHANNESBURG26 Park	Wingu Africa	Johannesburg, South Africa	—	7	1.46
Khazna JOHANNESBURG27 Central	Khazna	Johannesburg, South Africa	MI300X	3	1.40
Ooredoo JOHANNESBURG28 West	Ooredoo	Johannesburg, South Africa	—	3	1.41
Telecom Egypt JOHANNESBURG29 Park	Telecom Egypt	Johannesburg, South Africa	—	25	1.34
Rack Centre JOHANNESBURG30 Central	Rack Centre	Johannesburg, South Africa	—	25	1.35
Gulf Data Hub JOHANNESBURG31 Campus	Gulf Data Hub	Johannesburg, South Africa	—	8	1.43
Telecom Egypt JOHANNESBURG32 North	Telecom Egypt	Johannesburg, South Africa	—	20	1.25
Wingu Africa JOHANNESBURG33 North	Wingu Africa	Johannesburg, South Africa	—	18	1.25
stc Center3 JOHANNESBURG34 Campus	stc Center3	Johannesburg, South Africa	—	23	1.28
Gulf Data Hub JOHANNESBURG35 Campus	Gulf Data Hub	Johannesburg, South Africa	—	13	1.52
Africa Data Centres JOHANNESBURG36 Annex	Africa Data Centres	Johannesburg, South Africa	—	12	1.47
Rack Centre JOHANNESBURG37	Rack Centre	Johannesburg, South Africa	—	27	1.37
stc Center3 JOHANNESBURG38 West	stc Center3	Johannesburg, South Africa	—	22	1.29
Rack Centre JOHANNESBURG39 Annex	Rack Centre	Johannesburg, South Africa	A100	13	1.51

[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.