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Comparison · Blackwell generation

NVIDIA B200 vs B300: headroom against price.

Both are Blackwell, both need a facility most halls cannot provide, and the choice between them is a trade between present price and future headroom rather than a specification argument.

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Side by side

Where they differ.

DimensionNVIDIA B200NVIDIA B300
ArchitectureBlackwellBlackwell Ultra
Memory per GPU192GB HBM3e288GB HBM3e
Platform8-GPU HGX node8-GPU HGX node
Indicative node priceQuoted live against verified allocationAround $563,000 new, $530,000 refurbished
Indicative rentalRoughly $2.12 to $6.04 per GPU-hourNegotiated on reserved terms
Current verified stockSourced on requirement1,000 nodes new, 7-day lead; 50 refurbished
Facility requirementHigh density, liquid cooling strongly favouredHigh density, liquid-first
Wins onEntry price when allocation appearsHeadroom, frontier-scale training, availability today

Node pricing from SSP verified inventory, August 2026. Rental range from published provider pricing, 2026. Specifications from NVIDIA published documentation. B200 pricing moves with allocation, so we quote it live rather than publishing a number that would be stale within a week.

Two Blackwell-class GPU boards side by side, one noticeably denser
The honest advice

Most buyers reading this need neither.

Blackwell earns its price on frontier-scale training and the largest models. A great deal of production inference and mid-size training runs beautifully on H200 or H100 at a fraction of the cost, and buying flagship silicon for a workload that does not need it is the single most expensive mistake in this market.

If you genuinely are at that scale, the facility question comes before the SKU question. Density and cooling decide which buildings can host either of these, and that list is shorter than the market suggests. Start at space and power.

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Straight answers

Asked first, answered straight.

What is the difference between B200 and B300?

Both are Blackwell. B200 carries 192GB of HBM3e per GPU; B300 is Blackwell Ultra at 288GB. B300 is the current flagship for frontier training and the heaviest inference, while B200 delivers most of the generational uplift at a lower entry point when allocation appears.

Which is easier to get?

B300 currently has the deeper verified pool in our channel, with 1,000 new Supermicro HGX nodes on a seven-day lead. B200 we source on requirement rather than holding a standing line, because allocation appears and moves quickly.

What does the facility need to support them?

Blackwell densities push past what most legacy halls can cool. Liquid-capable floors and serious power per rack are the gating questions for both, and B300 more so. We qualify the facility before the hardware conversation finishes.

Should we wait for the next generation?

Almost never a good plan. There is always a next generation, and the cost of not training for two quarters usually exceeds the saving. Structure the term so you are not locked in when it lands, which is exactly what the term discussion is for.

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Working through this on a real requirement?

Twenty minutes with the desk, no pitch and no quote at the end of it. Tell us roughly what you need and we will come back within one business day.

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