AvailableBlackwell • 2025
B300
Blackwell Ultra standalone GPU. 288GB HBM3e — 1.5× more VRAM than B200. Flagship for extreme-scale AI training.
Technical Specifications
Architecture | Blackwell Ultra |
Release Year | 2025 |
Process Node | TSMC 4NP |
Form Factor | SXM (dual-die) |
VRAM | 288 GB HBM3e |
Memory Bandwidth | 8.0 TB/s |
Interconnect | NVLink 5 (1.8 TB/s) |
FP16 Performance | 2,500 TFLOPS (with sparsity) |
FP32 Performance | 125 TFLOPS |
FP64 Performance | 63 TFLOPS |
TDP | 1,200W |
Transistors | 208 billion |
Best Use Cases
- Trillion-parameter LLM training
- Exascale HPC
- AI factories
Quick Facts
FamilyBlackwell
ArchitectureBlackwell Ultra
Released2025
ProcessTSMC 4NP
Form FactorSXM (dual-die)
Related Blackwell GPUs
B300 — Frequently Asked Questions
What is the B300 GPU used for?
The B300 is best suited for: Trillion-parameter LLM training, Exascale HPC, AI factories.
How much VRAM does the B300 have?
The B300 has 288 GB HBM3e of VRAM.
What is the memory bandwidth of the B300?
The B300 has a memory bandwidth of 8.0 TB/s.
What interconnect does the B300 use?
The B300 uses NVLink 5 (1.8 TB/s).
When was the B300 released?
The B300 was released in 2025.