Tenstorrent Wormhole n300d
Overview
The Wormhole n300d is the actively cooled two-processor card, at $1,449 and 2.5 slots wide, and it is the version that fits a desktop workstation rather than a server chassis. Everything else matches the n300s: two Wormhole processors presenting as one 128-core Tensix grid, 192 MB of on-die SRAM, 24 GB of GDDR6 at 576 GB/s, up to 300 W, PCIe Gen4 x16, and two QSFP-DD 200G ports for meshing to other cards. Compute is 466 TFLOPS of dense FP8 and 131 TFLOPS of dense FP16. It is the largest single Wormhole card Tenstorrent sells, and the step up from here is the four-card TT-LoudBox and TT-QuietBox systems or the newer Blackhole generation.
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 16-bit floating point | 131TFLOPS |
FP8 8-bit floating point | 466TFLOPS |
FP6 | No verified data available |
FP4 | No verified data available |
INT8 | No verified data available |
Every figure here is dense. The vendor documents no structured (2:4) sparsity mode for this part, so there is no second number to quote.
Per watt divides the dense figure by the 300 W board power. Where only a sparse figure exists, the cell says so.
Specifications
Architecture
Wormhole
Form Factor
PCIe
Launch Year
2024
Process Node
No verified data available
Memory
24 GB GDDR6
Bandwidth
576 GB/s
TDP
300 W
Max Power
300 W
Interconnect
2x QSFP-DD 200G
Tensix
128
Spec Confidence
Official
Full Specifications
| Compute Engine | |
|---|---|
| GPUs per Module | 2 (all figures are totals for the module) |
| Tensix | 128 |
| Boost Clock | 1.00 GHz |
| Memory | |
| VRAM | 24 GB |
| Memory Type | GDDR6 |
| Bandwidth | 576 GB/s |
| Interface Width | No verified data available |
| On-Die SRAM | 192 MB |
| Interconnect & I/O | |
| GPU-to-GPU | 2x QSFP-DD 200G |
| PCIe | 4.0 x16 |
| Power & Thermal | |
| TDP | 300 W |
| Max Board Power | 300 W |
| Power Connector | 1x 4+4-pin EPS12V |
| Cooling | Active |
| Enterprise Features | |
| Sparsity | No |
| Physical & Media | |
| Width | 2.5-slot |
| General | |
| Form Factor | PCIe |
| Architecture | Wormhole |
| Process Node | No verified data available |
| Launch Year | 2024 |
Datasheet & Resources
Flopper Datasheet
Tenstorrent Wormhole n300d specifications, generated from our database. Printable.
Vendor product page
Tenstorrent documentation for the Wormhole n300d
Tenstorrent Wormhole AI Bringup Board Specifications
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
- 2 of 9
- Normalization
- All values in TFLOPS
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Frequently Asked Questions
How many TFLOPS does the Tenstorrent Wormhole have?
The Tenstorrent Wormhole delivers 131 TFLOPS FP16 and 466 TFLOPS FP8 at peak. Flopper does not currently have a verified FP32 throughput figure for it.
What is the power consumption of the Tenstorrent Wormhole?
The Tenstorrent Wormhole has a TDP (Thermal Design Power) rating of 300 watts.
How much memory does the Tenstorrent Wormhole have?
The Tenstorrent Wormhole is equipped with 24 GB of VRAM with 576 GB/s of memory bandwidth.
What architecture is the Tenstorrent Wormhole based on?
The Tenstorrent Wormhole is based on the Wormhole architecture, launched in 2024.
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