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B300 vs B200: what does Blackwell Ultra add for training?

Blackwell Ultra adds memory, not BF16 or FP8 training speed. The NVIDIA B300 has 288 GB per GPU against the B200's 180 GB, with the same FP8 throughput and memory bandwidth. On Nodus the B300 is listed at $6.943/hr and the B200 at $5.50/hr, so a B300 must finish a job 1.26 times faster to cost less…

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  1. 2026-11-05 02:49 · DEV Community — Machine Learning
    B300 vs B200: what does Blackwell Ultra add for training?

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