SU · Scalable Unit
A repeatable build block (a defined MW + GPU + cooling + fabric increment) that capacity ramps are composed of.
The standardized, repeatable design and procurement increment used to scale a cluster predictably.
Also written as: Scalable Unit
Current numbers
250 / 124 GB/sB300 Enhanced read/write per scalable unit (Standard 80/40); per GPU ~0.43 GB/s (576-GPU XDR RA) or ~0.49 (512-GPU Ethernet RA)
280 / 140 GB/sDGX SuperPOD with Vera Rubin NVL72, Standard 90/45 GB/s per SU; Enhanced read/write per 8-system (576-GPU) SU
576 GPUs / SUNVIDIA GB200 SuperPOD reference SU, separate from the 512-GPU teaching case