Tenstorrent Galaxy Blackhole
A 6U air-cooled chassis holding 32 Blackhole ASICs and rated by Tenstorrent at 23 PFLOPS of Block FP8, with 6.2 GB of on-die SRAM at 2.9 PB/s, 1 TB of GDDR6 at 16 TB/s, and 32 TB/s of aggregate Ethernet from ten 400 GbE links per ASIC plus up to 56 external 800 GbE QSFP-DD ports carrying 11.2 TB/s. It draws 8 to 10 kW on average and 12 kW at maximum, and is hosted by a single AMD EPYC 9004 with up to 32 cores and up to 576 GB of DDR5. Note that the Galaxy does not use the retail p150 bin: its figures work out at 718.75 TFLOPS and 193.75 MB of SRAM per ASIC, against 664 TFLOPS and 180 MB on the p150 card, so the ASICs here are a higher bin of the same silicon and Tenstorrent does not publish their Tensix core count. The compute figure recorded is Tenstorrent's own 23 PFLOPS for the machine, not 32 times the card, which would understate it by eight percent. Tenstorrent labels nothing dense or sparse and publishes no sparse rate.
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System Details
GPU Configuration
System Specifications
Precision Performance Breakdown
| Precision | System Performance | Per GPU | Efficiency |
|---|---|---|---|
| 23.0 PFLOPS | 719 TFLOPS | — |
Where a vendor states a basis, the figure shown is the dense one, and any figure it publishes is listed separately. Vendors commonly headline the sparse number instead: for NVIDIA's 2:4 structured sparsity that is exactly twice the dense figure, though other vendors' sparse modes do not all follow that ratio.
Powered by Tenstorrent Blackhole
This system utilizes 32 × Tenstorrent Blackhole p150a GPUs, each delivering exceptional performance for AI and HPC workloads.
Per GPU TDP
300W
Per GPU Memory
32 GB
Process Node
—
Architecture
Blackhole
Documentation & Resources
Flopper Spec Sheet
Tenstorrent Galaxy Blackhole specifications, generated from our database. Printable.
Vendor product page
Tenstorrent Galaxy Blackhole documentation
Tenstorrent Launches Next-Generation Wormhole-Based Developer Kits and Workstations
Tenstorrent • 2024-07-18
Typical Use Cases
The Tenstorrent Galaxy Blackhole runs 32× Blackhole GPUs over 10 x 400 GbE per ASIC for 32 TB/s aggregate; up to 56 x 800 GbE QSFP-DD ports for 11.2 TB/s, delivering 23.0 PFLOPS FP8 dense.