Chip comparison
NVIDIA GB300 (Blackwell Ultra) vs Tenstorrent Blackhole
Side-by-side specs
Straight from each vendor's datasheet. Winner in bold: higher throughput, memory, or transistor count; lower power draw or price. Sparse (2:4) throughput roughly doubles the FP8/INT8 numbers shown.
| Field | NVIDIA GB300 (Blackwell Ultra) | Tenstorrent Blackhole |
|---|---|---|
| Process node | TSMC 4NP | TSMC N6 |
| TDP | 1400 W | 300 W |
| Memory | 288 GB HBM3e | 32 GB GDDR6 |
| Memory bandwidth | 8,000 GB/s | 512 GB/s |
| FP16 (dense) | — | 745 TFLOPS |
| FP8 (dense) | 5,000 TFLOPS | — |
| INT8 (dense) | — | 2,980 TOPS |
| Form factor | Superchip (Blackwell Ultra + Grace) | PCIe |
| Announced | 2025-03-18 | 2024-07-01 |
| Released | 2025-11-01 | 2025-01-01 |
Robots running NVIDIA GB300 (Blackwell Ultra)
No robots publicly running it yet.
Robots running Tenstorrent Blackhole
No robots publicly running it yet.
Data centers with NVIDIA GB300 (Blackwell Ultra)
Data centers with Tenstorrent Blackhole
No data centers publicly running it yet.
Common questions
NVIDIA GB300 (Blackwell Ultra) vs Tenstorrent Blackhole: which is faster for training?
NVIDIA GB300 (Blackwell Ultra) has 6.71x the dense FP16/BF16 throughput of the other (NVIDIA GB300 (Blackwell Ultra): 5,000 TFLOPS; Tenstorrent Blackhole: 745 TFLOPS). Real-world training speed also depends on memory bandwidth, interconnect, and software stack: see the spec diff for those inputs.
NVIDIA GB300 (Blackwell Ultra) vs Tenstorrent Blackhole: which has more memory?
NVIDIA GB300 (Blackwell Ultra) carries more HBM (NVIDIA GB300 (Blackwell Ultra): 288 GB HBM3e; Tenstorrent Blackhole: 32 GB GDDR6). Memory capacity sets the largest model that fits on one chip without partitioning; memory bandwidth sets inference throughput.
NVIDIA GB300 (Blackwell Ultra) vs Tenstorrent Blackhole: which is more power-efficient?
Dense FP16/BF16 TFLOPS per watt: NVIDIA GB300 (Blackwell Ultra) 3.57 (5,000 ÷ 1400 W); Tenstorrent Blackhole 2.48 (745 ÷ 300 W). NVIDIA GB300 (Blackwell Ultra) wins at the die level; system-level efficiency also depends on cooling and interconnect.
NVIDIA GB300 (Blackwell Ultra) vs Tenstorrent Blackhole: which is more widely used?
NVIDIA GB300 (Blackwell Ultra): 0 robots and 1 data center publicly running it. Tenstorrent Blackhole: 0 robots and 0 data centers. Empty here means no operator has said publicly, not zero adoption in the market.
See also: every chip comparison · NVIDIA GB300 (Blackwell Ultra) full page · Tenstorrent Blackhole full page.