B300

Data Center GPU
Blackwell UltraNVIDIA B-SeriesData CenterHBM3e2025NVIDIA
Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
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At a Glance

Entry Type
Data Center GPU
Architecture
Blackwell Ultra
Series
NVIDIA B-Series
GPU Die
GB110
Launch Date
2025-09-11
CUDA Cores
18,944
TMUs
592
ROPs
24
Memory
144 GB HBM3e
Bus Width
4,096-bit
TDP/TBP
1,400 W
Rec. PSU
1,800 W
Interface
PCIe 5.0 x16
Data Confidence
Partial

Overview

B300 is an NVIDIA GPU entry in the NVIDIA B-Series family. It is listed with Blackwell Ultra architecture and GB110 silicon.

Key reference data: 18,944 CUDA cores/shaders, 144 GB HBM3e memory, 4,096-bit memory bus, 1,400 W board power class.

Server accelerators should be checked against platform compatibility, cooling, power delivery, firmware, and driver or CUDA support.

Why It Mattered

B300 is a NVIDIA B-Series accelerator from the Blackwell Ultra generation. Its historical context is data-center deployment rather than gaming, so form factor, memory capacity, interconnect, virtualization features, and server compatibility are the details that make this entry useful.

Collector Notes

For archival use, record the accelerator form factor, memory capacity, board part number, firmware or VBIOS, cooling type, bracket, interconnect support, power connectors, and the server or workstation it came from.

Used-Market Caution

Before buying used, confirm PCIe versus SXM or OAM form factor, passive airflow needs, auxiliary power, HBM size, firmware locks, ECC or retired-page errors, seller proof from nvidia-smi under load, and whether any vGPU or enterprise licensing is required.

Known Issues

Known issues pending source review.

Related GPUs

Back to NVIDIA B-Series

Previous in series: B200Next in series: GB10
SourcesPartial

Sources reviewed: 2026-06-20

This entry is still being source-checked.

Specifications are currently based on reference/spec-dump sources. Historical notes require additional source review.

Data confidence and source status

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

  • Verified: core specifications and historical notes have been reviewed against listed sources.
  • Partial: core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
  • Imported: spec-only imported entry pending editorial source review.
  • Needs source review: narrative notes are incomplete until reviewed.

Independent reference sources

  1. TechPowerUp GPU SpecsModel-level specification reference for this GPU entryOpen source

Derived datasets and spec dumps

  1. RightNow GPU DatabaseOpen data inventory used for bulk normalization and cross-checking Derived/spec-dump source. Treat as a reference dataset, not independent historical verification.Open source

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