NVIDIA · Blackwell · 2025
B300 GPU accelerator
B300 GPU accelerator: 288 GB HBM3E, 1,400 W, 18,944 CUDA cores. Launched September 11, 2025.
- Memory
- 288 GB
- Power
- 1,400 W
- Bus width
- 8,192 bit
Memory288 GB
1 of 32 in Data Center
Power1,400 W
1 of 40 by higher draw in Data Center
CUDA cores18,944
1 of 47 in Data Center
Current market
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Specifications
Memory
- Capacity
- 288 GB
- Memory type
- HBM3E
- Bus width
- 8,192 bit
- Bandwidth
- 8,000 GB/s
Compute
- CUDA cores
- 18,944
- SM count
- 148
- TMUs
- 592
- ROPs
- 24
- FP32
- 76,990 GFLOPS
- FP64
- 1,202.9 GFLOPS
Clocks
- Base clock
- 1,665 MHz
- Boost clock
- 2,032 MHz
Board
- TDP
- 1,400 W
- Form factor
- datacenter
Physical
- Architecture
- Blackwell
- Series
- Data Center
- Launch date
- September 11, 2025
Not recorded by the source: generation, codename, process and transistors, or 7 further fields.
Die figure
Silicon, made visible
Die area is drawn against the largest recorded die in the catalog. Shader dots use a labeled, card-specific ratio so both early and modern GPUs remain legible.
Catalog context
Within its series, the B300 GPU accelerator ranks second of 36 for FP32 throughput and first of 32 for memory capacity. Its 1,400 W TDP is above the 75 W PCIe slot-power ceiling.
Source: Wikipedia, revision 1369488585 · catalog loaded 2026-08-16