The rise of AI and HPC workloads has significantly increased GPU power consumption, from a few hundred watts to over 2,300W in the Rubin generation. This evolution has elevated cooling from a mere support component to a critical factor for maximizing computational performance. As traditional liquid-cooling methods near their physical limits, the industry is turning to a next-generation solution: Microchannel Lids (MCL). Quietly, a new “cooling revolution” is underway.

Key Highlights

• AI and HPC workloads have driven substantial rises in GPU power consumption, shifting from modest to elevated levels.
• Cooling has transformed from a secondary component to a vital element for enhancing computational performance.
• Traditional liquid-cooling techniques are approaching their fundamental physical boundaries. 
• The industry is adopting next-generation solutions like Microchannel Lids (MCL), sparking a subtle "cooling revolution".

Table of Contents

1. The Evolution of Server Cooling
   • Figure 1: TDP Trends Across NVIDIA’s GPU Generations
   • Table 1: Key Characteristics of Current Cooling Technologies
2. Cooling Revolution 3.0: The Operating Principle Behind MCL
   • Figure 2: Comparison Between Traditional “Vapor Chamber + Cold Plate” Cooling and MCL Architecture
   • Table 2: Comparison of Conventional “Heat Spread + Cold Plate” Cooling vs. MCL Solutions
3. NVIDIA’s Dual-Track Cooling Strategy for the Next-Generation Rubin Architecture
   • Table 3: NVIDIA Rubin Cooling Dual-Track Strategy for Different Configurations
4. Taiwan’s Key Thermal Suppliers and the Industry Impact
5. Outlook for Next-Generation Cooling Technologies
6. TRI’s View

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