Grayskull™

The Grayskull™ e75 and e150 DevKits are Tenstorrent’s foundational, inference-only AI graph processors. Built with Tensix Cores, each includes a compute unit, network-on-chip, local cache and “baby RISC-V” cores—creating a uniquely efficient data movement through the chip. Designed for adventurous ML developers seeking cost-effective, customizable alternatives to traditional GPUs.

Grayskull™ e75

The e75 DevKit is an introductory inference-only hardware kit, designed to provide a foundational platform for AI experimentation and development. (Ships with Active Cooling Kit installed)

Software support for Grayskull is discontinued. The last supported versions of Tenstorrent software for Grayskull are listed on the documentation site. Our Wormhole-based cards and hardware are still supported and available here. Users with questions or concerns can contact Tenstorrent support at support@tenstorrent.com.

Software Capabilities

System Requirements

Currently unavailable

Grayskull™ e150

The e150 DevKit is an introductory inference-only hardware kit, designed to provide a foundational platform for AI experimentation and development. (Ships with Active Cooling Kit installed)

Software Capabilities

System Requirements

Currently unavailable

Specification

e75

e150

Part Number

TC-01001

TC-01002

Tensix Cores

120

AI Clock

1 GHz

1.2 GHz

SRAM

96MB

120MB

Memory

8GB LPDDR4

Memory Speed

3.2 GT/sec

3.7 GT/sec

Memory Bandwidth

102.4 GB/sec

118.4 GB/sec

TeraFLOPs (FP8)

221

332

TBP (Total Board Power)

75W

200W

External Power

1x 6-pin PCIe (required for powering fan)

1x 6+2-pin PCIe 1x 6-pin PCIe

System Interface

PCI Express 4.0 x16

Cooling

Active

Passive (Active Cooling Kit sold separately)

Dimensions (w/o Cooling Kit) (WxDxH)

18mm x 167.5mm x 69mm

36mm x 259.8mm x 111.25mm

Dimensions (w/ Cooling Kit) (WxDxH)

18mm x 257mm x 98mm

36mm x 399mm x 114mm

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