NVDA · News · 20260721N

Two-Phase Direct-to-Chip Cooling Benchmark

NVIDIA CORP · 2026-07-21 · Importance 17 · Surprise 24

Accelsius released third-party benchmarks showing its two-phase direct-to-chip liquid cooling lowers NVIDIA B200 junction temperatures by 9°C compared with single-phase in warm-water facility conditions. The report highlights that Accelsius can support NVIDIA's goal of enabling global free cooling at warmer facility-water temperatures, by matching single-phase performance at 45°C facility water with 54°C inlet water. Coverage underscores growing market demand for advanced cooling as hyperscalers and neoclouds build gigawatt-scale facilities and seek more efficient thermal solutions for Blackwell/B200/GB300-class servers. The item signals an enlarging ecosystem of thermal suppliers targeting NVIDIA-powered AI racks and the importance of cooling in data-center total-cost-of-ownership discussions.

Key facts

• Two-phase, direct-to-chip cooling benchmarks show that this cooling approach delivers 9°C lower NVIDIA B200 junction temperatures than single-phase in warm-water conditions source
• Independent benchmarks show Accelsius Two-Phase Direct-to-Chip Cooling delivers 9°C lower NVIDIA B200 junction temperatures than single-phase in warm-water conditions source