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Hitachi develops a GPU cold plate it estimates can cut cooling power by 30%
What changed
The prototype uses a U-Tunnel channel structure that directs coolant at the GPU's heat-generating area. Hitachi measured a thermal resistance of 0.011 K/W and a pressure drop of 27.6 kPa at 4 L/min. Because it works with warmer coolant, Hitachi estimates more hours of outdoor-air heat rejection and a 30% cut in the power needed to reject GPU heat. The saving is a company estimate based on modelled city climates.
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Related on CoolPower Index: Chip power and cooling.
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