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

Facility	Operator	Location	GPU	MW	PUE
Dell AI Factory TN	Dell	Nashville, TN, USA	PowerEdge XE9680 assembly	22	1.40
STACK Infrastructure NASHVILLE1	STACK Infrastructure	Nashville, TN, USA	—	21	1.36
STACK Infrastructure NASHVILLE2 East	STACK Infrastructure	Nashville, TN, USA	—	21	1.24
eStruxture NASHVILLE3 Annex	eStruxture	Nashville, TN, USA	—	8	1.50
Iron Mountain NASHVILLE4 South	Iron Mountain	Nashville, TN, USA	—	13	1.55
eStruxture NASHVILLE5	eStruxture	Nashville, TN, USA	—	9	1.47
eStruxture NASHVILLE6 Park	eStruxture	Nashville, TN, USA	—	4	1.44
STACK Infrastructure NASHVILLE7 South	STACK Infrastructure	Nashville, TN, USA	—	19	1.30
STACK Infrastructure NASHVILLE8 Annex	STACK Infrastructure	Nashville, TN, USA	—	22	1.41
STACK Infrastructure NASHVILLE9 West	STACK Infrastructure	Nashville, TN, USA	—	2	1.38
STACK Infrastructure NASHVILLE10 East	STACK Infrastructure	Nashville, TN, USA	—	14	1.55
CoreSite NASHVILLE11	CoreSite	Nashville, TN, USA	MI300X	22	1.35
QTS Data Centers NASHVILLE12 South	QTS Data Centers	Nashville, TN, USA	—	19	1.33
T5 Data Centers NASHVILLE13 Campus	T5 Data Centers	Nashville, TN, USA	L40S	6	1.48
NTT Global Data Centers NASHVILLE14 East	NTT Global Data Centers	Nashville, TN, USA	—	8	1.47
CoreSite NASHVILLE15 East	CoreSite	Nashville, TN, USA	—	17	1.25
QTS Data Centers NASHVILLE16 East	QTS Data Centers	Nashville, TN, USA	MI300X	9	1.52
Cologix NASHVILLE17 West	Cologix	Nashville, TN, USA	L40S	6	1.45
NTT Global Data Centers NASHVILLE18 North	NTT Global Data Centers	Nashville, TN, USA	—	3	1.38

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry