GB300
NVIDIA's Blackwell Ultra rack generation (Grace CPU plus Blackwell Ultra GPUs) in NVL72 form; the density step between GB200 and the Rubin era.
Current numbers
~190 kW (Max Q) / ~230 kW (Max P)Vera Rubin NVL72 rack power — ~190 kW (Max Q) / ~230 kW (Max P); analyst-sourced (Kuo), not an NVIDIA datasheet; both above GB300 NVL72 (~140 kW)
~132 kW nominal; ~155 kW peakper HPE GB300 NVL72 rack — 132 kW nominal TDP and approximately 155 kW peak electrical design power; HPE recommends provisioning busways for 192 kW
~132–142 kW nominal; ~155 kW peakper GB300 NVL72 rack (up to ~155 kW peak); CPUs/GPUs/NVSwitch liquid, optics/storage air