# Specifications/Requirements
## Wormhole™ Tensix Processor
The Wormhole™ n150d, n150s, n300d, and n300s Tensix Processor add-in boards are built using the Tenstorrent Wormhole™ Tensix Processor:
- **Tensix Core Count:** 80
- **SRAM:** 120MB (1.5MB per Tensix Core)
- **Memory:** 12GB GDDR6, 192-bit memory bus
## Card Comparison Table
**NOTE:** The **n150s and n300s add-in cards** come with a heatsink for passive cooling in systems which can provide sufficient forced airflow to the card. If your system does not (for example, a desktop workstation), installing the bundled [Active Cooling Kit](../ack.md) is **required**; we strongly recommend desktop workstations use the **n150d** and **n300d** add-in cards which are designed for desktop deployment. If the card isn’t sufficiently cooled, performance will be substantially reduced to stay in a safe operating temperature range and you risk damage to the card.
| Specification | n150d | n150s | n300d | n300s |
| ----------------------------------- | --------------------------------------------------- | --------------------------------------------------- | --------------------------------------------------- | --------------------------------------------------- |
| Part Number | TC-02002 | TC-02001 | TC-02004 | TC-02003 |
| Wormhole™ ASICs | 1 | 1 | 2 | 2 |
| Tensix Cores | 72 | 72 | 128 (64 per ASIC) | 128 (64 per ASIC) |
| AI Clock | 1 GHz | 1 GHz | 1 GHz | 1 GHz |
| SRAM | 108MB | 108MB | 192MB (96MB per ASIC) | 192MB (96MB per ASIC) |
| Memory | 12GB GDDR6 | 12GB GDDR6 | 24GB GDDR6 | 24GB GDDR6 |
| Memory Speed | 12 GT/sec | 12 GT/sec | 12 GT/sec | 12 GT/sec |
| Memory Bandwidth | 288 GB/sec | 288 GB/sec | 576 GB/sec | 576 GB/sec |
| TeraFLOPS (FP8) | 262 | 262 | 466 | 466 |
| TeraFLOPS (FP16) | 74 | 74 | 131 | 131 |
| TeraFLOPS (BLOCKFP8) | 148 | 148 | 262 | 262 |
| TBP (Total Board Power) | 160W | 160W | 300W | 300W |
| External Power | 1x 4+4-pin EPS12V | 1x 4+4-pin EPS12V | 1x 4+4-pin EPS12V | 1x 4+4-pin EPS12V |
| Connectivity | 2x Warp 100 Bridge
2x QSFP-DD 400GbE (Active)* | 2x Warp 100 Bridge
2x QSFP-DD 400GbE (Active)* | 2x Warp 100 Bridge
2x QSFP-DD 400GbE (Active)* | 2x Warp 100 Bridge
2x QSFP-DD 400GbE (Active)* |
| Internal Chip-to-Chip | N/A | N/A | 400GbE | 400GbE |
| System Interface | PCI Express 4.0 x16 | PCI Express 4.0 x16 | PCI Express 4.0 x16 | PCI Express 4.0 x16 |
| Cooling | Active (Axial Fan) | Passive | Active (Axial Fan) | Passive |
| Dimensions (WxDxH) | 52.2mm x 256mm x 111mm | 36mm x 254mm x 111mm | 52.2mm x 256mm x 111mm | 36mm x 254mm x 111mm |
| Dimensions (w/ Cooling Kit) (WxDxH) | N/A | 36mm x 393.5mm x 114mm | N/A | 36mm x 393.5mm x 114mm |
**For connecting to Tenstorrent Wormhole™-based cards only.*
*n150s/n300s without Active Cooling Kit*
## Connectivity
Wormhole™ cards include two different methods for interconnecting cards. *(n150s/n300s pictured; n150d and n300d will have the same ports and bridges.)*
The Warp 100 notches are for attaching internal [Warp 100 bridges](..\warp100.md) between Wormhole™ cards.
The two QSFP-DD ports are active and support 400GbE connectivity between cards and/or Wormhole™-based systems/servers.
## Data Precision Formats
The Wormhole™ Tensix Processor supports the following data precision formats:
| Format | Bit Depth |
| -------------------- | ------------------------------------------- |
| Floating point | FP8, FP16, BFLOAT16
FP32 (Output Only) |
| Block floating point | BLOCKFP2, BLOCKFP4, BLOCKFP8 |
| Integer | INT8
INT32 (Output Only) |
| Unsigned Integer | UINT8 |
| TensorFloat | TF32 |
| Vector | VTF19, VFP32 |
## Minimum System Requirements
| Part | Requirement |
| --------------------------------- | ------------------------------------------------------------ |
| CPU | x86_64 architecture* |
| Motherboard | PCI Express 4.0 x16 slot
Dual-slot-width (n150s/n300s)
2.5-slot-width (n150d/n300d) |
| Memory | 64 GB |
| Storage | 100 GB (≥2TB recommended) |
| Power Connectors | 4+4-pin EPS12V
6+2-pin PCIe (if using Active Cooling Kit) |
| Total Board Power | Up to 160W (n150d/n150s) / 300W (n300d/n300s) |
| Operating Temperature Range (Die) | 0C - 75C |
| Operating System | Ubuntu version 20.04 (Focal Fossa) ** |
| Internet Connection | Required for driver and stack installation. |
** CPU core count and number of sockets will depend on the amount of host preprocessing and post-processing required before and after the accelerator processing.*
***To check your version, type* `cat /etc/os-release`.
## Environment Specifications
The Wormhole™ Tensix Processor add-in boards are designed to meet these environmental specifications:
| Specification | Requirement |
| ------------------------------------- | ------------------------- |
| Operating Temperature Range | 10°C/50°F - 35°C/95°F |
| Storage Temperature Range | -40°C/-40°F - 75°C/167°F |
| Elevation | -5 ft. to 10,000 ft. |
| Air Flow (without Active Cooling Kit) | ≥30 CFM @ up to 35°C/95°F |