Tenstorrent Blackhole p150a
Overview
The Tenstorrent Blackhole p150a is the networked Blackhole card: 120 Tensix cores and 16 "big" RISC-V cores delivering 664 TFLOPS of Block FP8, with 180 MB of on-die SRAM and 32 GB of GDDR6 at 512 GB/s, on a 300 W actively cooled PCIe 5.0 x16 board. Four QSFP-DD 800G ports let cards be meshed directly to one another without going through the host, which is how Tenstorrent scales Blackhole beyond a single machine. Tenstorrent publishes a single compute figure and labels nothing dense or sparse, so only Block FP8 is recorded and no sparse value is derived.
Performance Metrics
Peak theoretical throughput by precision type
| Precision | Bits | Peak TFLOPS | Efficiency |
|---|---|---|---|
| FP8 | 8 | 664.0 | 2.213 TFLOPS/W |
Power Specifications
TDP
300 W
Max Power
345 W
Power Connector
PCIe 8-pin
Cooling
Active
Memory Specifications
Capacity
32 GB
Type
GDDR6
Bandwidth
512 GB/s
Interface
--
Hardware & Design
Form Factor
PCIe
Architecture
Blackhole
Process Node
--
Launch Year
--
Variant
p150a
Market Segment
Data Center
Full Specifications
| Compute Engine | |
|---|---|
| Tensix | 120 |
| Memory | |
| VRAM | 32 GB |
| Memory Type | GDDR6 |
| Bandwidth | 512 GB/s |
| 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 |
| Cooling | Active |
| General | |
| Form Factor | PCIe |
| Architecture | Blackhole |
Documentation & Resources
Common Use Cases
The Tenstorrent Blackhole is optimized for high-performance computing tasks with Blackhole architecture delivering high TFLOPS of compute power.
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