Rebellions RebelRack
Overview
Performance Metrics
| Precision | Peak (PFLOPS) | Per GPU (TFLOPS) | TFLOPS/W |
|---|---|---|---|
| FP16 | 32.8 | 1024.0 | — |
| FP8 | 65.5 | 2048.0 | — |
All figures are dense. Vendors commonly headline the sparse number, which is twice the dense one.
Configuration
- Accelerator
- Rebel100
- Count
- 32
- Memory per GPU
- 144 GB
- Bandwidth per GPU
- 4.8 TB/s
Power & Efficiency
- Aggregate Power
- 28.0 kW
- TDP per GPU
- 600 W
- FP8 Efficiency
- 2.34 TFLOPS/W
- Aggregate Bandwidth
- 153.6 TB/s
System Details
Interconnect
Backend fabric 400G QSFP112-DD; frontend network 25G SFP28
Notes
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.