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Pyyan / Compare / Trainium 3 vs B300 Blackwell Ultra

Trainium 3 vs B300 Blackwell Ultra

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GPU & AI Chips · verified 13 Aug 2026

Trainium 3AWScurrent
B300 Blackwell UltraNVIDIAcurrent
3 slots left
SpecificationTrainium 3B300 Blackwell Ultra
Summary30–40% better price-performance.15 PFLOPS dense FP4.
Memory144GB HBM3e288GB HBM3e
Bandwidth—8 TB/s
Price—~$40–50K (verify)
VendorAWSNVIDIA
CategoryGPU & AI ChipsGPU & AI Chips
OfficialAWS ↗NVIDIA ↗

Highlighted rows are where these differ.

Trainium 3

  • EC2 Trn3 only
  • Nearly fully reserved

Best for AWS training.

Full spec sheet →

B300 Blackwell Ultra

  • 8 TB/s memory bandwidth
  • Per-GPU pricing widely misquoted — one source cites rack pricing

Best for frontier training.

Full spec sheet →