Question 1

What is an AI datacenter?

Accepted Answer

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.

Question 2

Which datacenter has the most GPUs?

Accepted Answer

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.

Question 3

What is the largest AI cluster?

Accepted Answer

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.

Question 4

Which GPU cloud is cheapest for H100?

Accepted Answer

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.

Question 5

How is Datacenter.computer different from a datacenter directory?

Accepted Answer

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.

Facility	Operator	Location	Status	Accelerators	Recorded MW	Confidence
Equinix SY1	Equinix	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
Equinix SY2	Equinix	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
Digital Realty Sydney	Digital Realty	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NTT Sydney	NTT GDC	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
STACK Sydney	STACK Infrastructure	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
AirTrunk SYD1 Sydney West	AirTrunk	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
AirTrunk SYD2 Sydney North	AirTrunk	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
AirTrunk SYD3 Sydney West	AirTrunk	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NEXTDC S1 Macquarie Park	NEXTDC	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NEXTDC S2 Macquarie Park	NEXTDC	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NEXTDC S3 Artarmon	NEXTDC	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NEXTDC S4 Horsley Park	NEXTDC	Sydney, Australia	Planned	Not publicly disclosed	Not disclosed	High
NEXTDC S5 Macquarie Park	NEXTDC	Sydney, Australia	Planned	Not publicly disclosed	Not disclosed	High
NEXTDC S6 Artarmon	NEXTDC	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NEXTDC S7 Sydney	NEXTDC	Sydney, Australia	Planned	Not publicly disclosed	Not disclosed	High
CDC Eastern Creek EC1	CDC Data Centres	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
CDC Eastern Creek EC2	CDC Data Centres	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
CDC Eastern Creek EC3	CDC Data Centres	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
CDC Eastern Creek EC4	CDC Data Centres	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
CDC Eastern Creek EC5	CDC Data Centres	Sydney, Australia	Under Construction	Not publicly disclosed	Not disclosed	High
CDC Eastern Creek EC6	CDC Data Centres	Sydney, Australia	Under Construction	Not publicly disclosed	Not disclosed	High
CDC Marsden Park Campus	CDC Data Centres	Sydney, Australia	Under Construction	Not publicly disclosed	504	High
Keppel DC Sydney	Keppel Data Centres	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
OVHcloud Sydney (SYD)	OVHcloud	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry