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
132 kW HPE GB200 nominal TDP / up to 142 kW GB300 facility basisper dense training rack (HPE GB200 NVL72 ~132 kW nominal TDP; GB300 up to ~142 kW facility basis)
~$6.25M/system; ~$86.8k/installed GPUGB300 complete-system default: 72 GPUs (Appendix C)
135 kW TDP; 155 kW peak; up to 142 kW facility design basis; ~90% liquid / ~10% airper GB300 NVL72 rack (up to ~155 kW peak); CPUs/GPUs/NVSwitch liquid, optics/storage air