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NVIDIA / Blackwell / Datacenter

NVIDIA B200
LLM fit guide.

Frontier systems. This profile uses an 85% planning ceiling, leaving approximately 27.0 GB outside the recommended workload envelope.

VRAM180GB advertised
Planning ceiling153.0 GB
Models within ceiling11 of 11
ArchitectureBlackwell
Sample rate$5.50 / GPU-hour
Model fit matrix

What fits in 180 GB?

These estimates use one 8K sequence and include runtime workspace. “Multi-GPU” indicates the minimum memory-equivalent device count, not a guarantee that the model or runtime supports that topology efficiently.

01 / Good fit

Where this profile makes sense.

NVIDIA B200 is positioned as frontier systems hardware with 180 GB of memory. It is a practical candidate when the full serving envelope stays below 153.0 GB per device and the runtime supports the selected precision. For latency or throughput planning, memory fit is only the first gate: benchmark the exact model, batch shape, framework, and provider topology.

02 / Watch-outs

Why a fit can still fail.

Advertised capacity is not always fully available to model serving. Drivers, runtime kernels, CUDA or ROCm graphs, fragmentation, adapters, multimodal encoders, speculative decoding, and provider reservations can all move the real boundary. Treat the matrix as a shortlist, then validate on the target stack.

Validate before renting

Turn the profile into a workload test.

The sample rate on this page is a planning input, not a live offer. Recheck context, precision, concurrency, and GPU count before committing capacity.

Run the workload fit check →Compare all GPUs