Rebellions RebelRack
A 42U rack of four RebelServers holding 32 Rebel100 cards, rated by Rebellions at 65.5 PFLOPS FP8 and 32.7 PFLOPS FP16, with 4.61 TB of HBM3E at 153.6 TB/s and 6 TB of DDR5 across eight AMD EPYC 9355 processors totalling 256 cores and 512 threads. It draws up to 28 kW and rejects 105,094 BTU/hour at maximum, in a 600 by 1200 mm footprint weighing about 351 kg unpackaged. Figures here are the exact products of the per-card specification, which reconcile to Rebellions' printed 65.5 and 32.7. All figures are dense: Rebellions labels the Rebel100 compute "Compute (Dense)" and publishes no sparse rate.
We will point you at suppliers who have it. Free, and no signup.
System Details
GPU Configuration
System Specifications
Precision Performance Breakdown
| Precision | System Performance | Per GPU | Efficiency |
|---|---|---|---|
| 32.8 PFLOPS | 1,024 TFLOPS | — | |
| 65.5 PFLOPS | 2,048 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 Rebellions Rebel100
This system utilizes 32 × Rebellions Rebel100 GPUs, each delivering exceptional performance for AI and HPC workloads.
Per GPU TDP
600W
Per GPU Memory
144 GB
Process Node
4nm
Architecture
REBEL
Documentation & Resources
Flopper Spec Sheet
Rebellions RebelRack specifications, generated from our database. Printable.
Vendor product page
Rebellions RebelRack documentation
ATOM-Max Server brochure v1.6 (Rebellions)
Rebellions • 2026-06-18
Typical Use Cases
The Rebellions RebelRack runs 32× Rebel100 GPUs over Backend fabric 400G QSFP112-DD; frontend network 25G SFP28, delivering 65.5 PFLOPS FP8 dense.