Tenstorrent Blackhole p150b
Overview
The Tenstorrent Blackhole p150b is the passively cooled version of the p150a and is otherwise identical: 120 Tensix cores, 16 "big" RISC-V cores, 664 TFLOPS of Block FP8, 180 MB of on-die SRAM, 32 GB of GDDR6 at 512 GB/s, 300 W, PCIe 5.0 x16 and four QSFP-DD 800G ports. It carries no fan and is meant for server chassis that supply their own airflow. Tenstorrent publishes a single compute figure and labels nothing dense or sparse.
Performance
Peak theoretical throughput by precision type
| Precision | Peak |
|---|---|
FP64 | No verified data available |
FP32 | No verified data available |
TF32 | No verified data available |
BF16 | No verified data available |
FP16 | No verified data available |
FP8 8-bit floating point | 664TFLOPS |
FP6 | No verified data available |
FP4 | No verified data available |
INT8 | No verified data available |
Dense peak divided by accelerator TDP. Board power only: excludes host CPUs, networking, cooling and facility overhead. TDP for this part: 300 W.
Specifications
Architecture
Blackhole
Form Factor
PCIe
Launch Year
No verified data available
Process Node
No verified data available
Memory
32 GB GDDR6
Bandwidth
512 GB/s
TDP
300 W
Max power (Flopper estimate)
~345 W est. Flopper estimate: 300 W TDP x 1.15. The vendor publishes no maximum board power for this part.
Interconnect
4x QSFP-DD 800G (Passive)
Tensix
120
Spec Confidence
Official
Full Specifications
| Compute Engine | |
|---|---|
| Tensix | 120 |
| Memory | |
| Memory | 32 GB |
| Memory Type | GDDR6 |
| Bandwidth | 512 GB/s |
| Interface Width | No verified data available |
| On-Die SRAM | 180 MB |
| Interconnect & I/O | |
| GPU-to-GPU | 4x QSFP-DD 800G (Passive) |
| PCIe | 5.0 x16 |
| Power & Thermal | |
| TDP | 300 W |
| Max power (Flopper estimate) | ~345 W est. |
| Cooling | Passive |
| General | |
| Form Factor | PCIe |
| Architecture | Blackhole |
| Process Node | No verified data available |
| Launch Year | No verified data available |
Datasheet & Resources
Flopper Datasheet
Tenstorrent Blackhole p150b specifications, generated from our database. Printable.
Vendor product page
Tenstorrent documentation for the Blackhole p150b
Blackhole card comparison table (Tenstorrent)
Tenstorrent · Latest version
Data Provenance
Every figure traced to a source
Primary Source
- Publisher
- Tenstorrent
- Published
- No verified data available
Data Quality
- Spec confidence
- Official
- Clock basis
- Boost
- Core precisions with figures
- 1 of 9
- Normalization
- All values in TFLOPS
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Frequently Asked Questions
How many TFLOPS does the Tenstorrent Blackhole have?
The Tenstorrent Blackhole delivers 664 TFLOPS FP8 at peak. Flopper does not currently have verified FP32 and FP16 throughput figures for it.
What is the power consumption of the Tenstorrent Blackhole?
The Tenstorrent Blackhole has a TDP (Thermal Design Power) rating of 300 watts.
How much memory does the Tenstorrent Blackhole have?
The Tenstorrent Blackhole is equipped with 32 GB of memory with 512 GB/s of memory bandwidth.
What architecture is the Tenstorrent Blackhole based on?
The Tenstorrent Blackhole is based on the Blackhole architecture. Flopper does not currently have a verified launch year for it.
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