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Pyyan / Compare / B300 Blackwell Ultra vs Ascend 950DT

B300 Blackwell Ultra vs Ascend 950DT

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GPU & AI Chips · verified 24 Sept 2026

B300 Blackwell UltraNVIDIAcurrent
HAscend 950DTHuaweicurrent
3 slots left
SpecificationB300 Blackwell UltraAscend 950DT
Summary15 PFLOPS dense FP4.144GB on Huawei's own HBM, and the part China is building gigawatts around.
Memory288GB HBM3e144GB HiZQ 2.0
Bandwidth8 TB/s4 TB/s
Price~$40–50K (verify)Above ¥250,000 (about $37K), reported
VendorNVIDIAHuawei
CategoryGPU & AI ChipsGPU & AI Chips
OfficialNVIDIA ↗Huawei ↗

Highlighted rows are where these differ.

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 →

Ascend 950DT

  • 4 TB/s memory bandwidth and a 2 TB/s interconnect, 2.5x the Ascend 910C
  • HiZQ 2.0 is Huawei's own memory standard rather than a licensed HBM3 or HBM3e part
  • Indicated price rose 20% to 50% in two months to September 2026, on a memory shortage
  • Successor Ascend 960DT pulled forward to Q1 2027, Huawei said on 17 September

Best for serving models where Nvidia cannot be bought.

Full spec sheet →