Nvidia(US:NVDA) Hua Er Jie Jian Wen·2025-12-28 11:57Core Insights - Nvidia is leading a significant shift in data center power architecture by transitioning from traditional AC power to 800V DC power, preparing for ultra-high-density computing environments with a power density of 1 megawatt (MW) per rack [1] - This transition is driven by the increasing power density demands of modern AI workloads, which are expected to exceed the capabilities of existing power systems [2] - The shift to 800V DC is anticipated to reduce total cost of ownership (TCO) by 30% in the long term, although it presents a substantial capital expenditure challenge in the short term [1][6] Group 1: Technological Transition - The 800V DC architecture allows for over 150% more power transmission on the same copper conductors compared to traditional systems, significantly enhancing energy efficiency [2] - Nvidia's new Vera Rubin NVL144 rack design incorporates liquid cooling technology and increased energy storage capacity to manage the extreme power density [2] - The transition will eliminate the need for traditional AC power distribution units (PDUs) and uninterruptible power supply (UPS) systems, reducing the demand for AC PDUs by up to 75% [3] Group 2: Market Impact - The shift to higher voltage systems is expected to increase revenue potential per megawatt from €2 million to €3 million in traditional data centers [4] - The industry anticipates that 80-90% of new data centers will adopt the 800V DC architecture in the future, despite currently only one-third of racks operating below 10kW [5] - Key suppliers in the semiconductor space, such as Analog Devices and Infineon, are positioning themselves to meet the demand for advanced chips required for 800V DC systems [5] Group 3: Infrastructure and Supply Chain - The transition will necessitate a comprehensive upgrade of the entire supply chain, including transformers, circuit breakers, and cooling systems [1] - Companies like Schneider Electric are targeting the market for racks capable of handling up to 1.2MW, while also developing solutions for liquid cooling systems [3] - Solid-state protection devices are replacing mechanical circuit breakers, with ABB leading in the development of solid-state breakers designed for DC distribution [5] Group 4: Timeline and Financial Considerations - The full commercial transition to 800V DC data centers is expected to align with the deployment of Nvidia's Kyber architecture by 2027, with significant scale effects anticipated around 2028 [6] - Data center operators will face substantial investment requirements over the next five years, in addition to addressing a $5 trillion AI funding gap [6]