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NVIDIA · Blackwell · Layer 2

NVIDIA B200

The default frontier accelerator. If you have no specific reason to choose otherwise, this is what the market chose.

rent Rentable by the hour from multiple clouds; purchasable at scale.

Specifications

Memory
192 GB HBM3E
Bandwidth
8 TB/s
Compute
FP4 and FP8 sparse; vendor figures vary by configuration
Power
Up to 1,000 W per GPU in liquid-cooled configurations
Interconnect
NVLink 5
Software
CUDA
Form factor
accelerator
Workload
both

Verified 2026-09-09. Fields reading “not published” are exactly that — we do not estimate a figure a vendor withholds.

The catch

192 GB is less memory than AMD's MI355X at 288 GB, and for memory-bound inference that gap is the whole argument.

The economics

CUDA maturity is the real product. The chip is competitive; the software moat is why it wins procurement.

Cost per million tokens is the metric that decides most real purchases, and there is no neutral benchmark for it — every published figure comes from a company selling one side of the comparison. Read all of them, ours included, as claims rather than measurements.

The power question underneath this

A rack of frontier accelerators draws 120–200 kW against a 2026 average of about 27 kW, and the US grid interconnection queue exceeds 2,600 GW with waits approaching five years. Whether you can energise this part is now a harder question than whether you can buy it.

Layer 1 — Energy · The interconnection queue · Rack power density · Tokens per watt

Where you actually rent this

Choosing the part is the easy half. The same accelerator rents for wildly different money depending only on who you rent it from — the cheapest and dearest published on-demand price for an H100 sit 5.6× apart — and the provider, not the chip, is what decides whether you can leave later.

Layer 2.5 — Compute providers · The GPU cost calculator · B200 rental prices, every company

Compared against

Related silicon

Sources

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