free · calibrated against measured results, not spec sheets

Will it fit — and how fast?

Pick a model size, quantization, and node count. Estimates are calibrated against real measured results from our 8× GB10 cluster — including the multi-node overhead the spec-sheet math ignores.

Estimates the memory-bandwidth decode floor. Tuning runs above this — see the measured entries.

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Enter your model above.

This is a rough floor — the single-stream decode rate the memory bandwidth allows, before tuning. A well-tuned deployment runs meaningfully above the floor; the out-of-box state runs 2–5× below it. Treat as an order-of-magnitude sanity check, not a promise (±40%). Multi-node figures assume a correctly configured 100 Gbps+ fabric; a misconfigured one costs more than any number here (see the 13 Gbps trap).

The calculator says one thing. Your cluster says another?

That gap is exactly what we fix. The 1-day diagnostic measures where your real number is, why, and what's recoverable — in writing, or it's free.

Book a 1-day diagnostic →