Chips › NVIDIA B300 (Blackwell Ultra): specs, runtimes, measured speeds

NVIDIA B300 (Blackwell Ultra): specs, runtimes, measured speeds

NVIDIA B300 (Blackwell Ultra) specs with sources and dates, the runtimes that run on it with evidence, and the configs we measured.

Snapshot 2026-10-15 · 394 configs on AI boxes and 423 on GPU cards · 123 models. Every number is generated from the tracker snapshot and linked to where it was measured; nothing here is typed by hand.

NVIDIA · datacenter-gpu. 0 measured configs. Runtimes with an entry: 7.

Specs

• Memory: 288 GB · source (2026-10-07)
• Memory type: HBM3E · source (2026-10-07)
• Memory bandwidth: 8000 GB/s · source (2026-10-07)
• Peak AI compute (vendor figure): 15 PFLOPS · source (2026-10-07)
• Power (TDP): not stated · no source (2026-10-07)
• Process node: TSMC 4NP · source (2026-10-07)
• Launched: not stated · no source (2026-10-07)
• Status: shipping · source (2026-10-07)
• Transistors: 208 billion · source (2026-10-07)
• NVLink: 1800 GB/s · source (2026-10-07)

More: all configs · hardware · news · contributors · methodology · llms.txt · llms-full.txt · API (OpenAPI) · JSON snapshot. Built by Altronis, private on-prem AI, Singapore.