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Analysis of Power Density and Liquid Cooling Infrastructure Changes in North American AIDC Driven by NVIDIA GPU Evolution

·2026.11.04 10:52

Key point

From Ampere to Rubin, rising GPU TDP has increased per-rack power density to 150kW or more.

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Details

  • Power density surges from 10~15kW per rack for Ampere(A100) to 150kW or more for Rubin Ultra (scheduled for 2027)
  • From Blackwell(NVL72) onward, direct liquid cooling (DLC) is standardized in 100kW per-rack environments
  • The introduction of 480V high-voltage direct distribution and ceiling-mounted track busways minimizes cable thickness and heat loss
  • Precision control of chip surface temperature is required through primary/secondary loop heat exchange using megawatt-class CDU
  • 2-year GPU generation replacement increases asset aging risk and redesign requirements for existing infrastructure
gpunvidiablackwellkt-cloudaidcvera-rubinliquid-coolingpower-density
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