Microsoft has released a server processor, the Cobalt 200, customized for its Azure cloud infrastructure. It is reported that this chip offers approximately a 50% performance improvement over the previous Cobalt 100 design and enhances energy efficiency. Some Cobalt 200 systems are already operational in Microsoft data centers, with plans to provide more to customers by 2026. This makes the Cobalt 200 a key hardware component for many Azure services.
The processor utilizes Arm Neoverse V3 technology, constructed in a dual-chiplet layout with a total of 132 cores, and is manufactured by TSMC using a 3nm process. Its design emphasizes precise power consumption control, allowing each core to operate at independent voltages and frequencies. This means that each core can independently boost performance based on workload demands. The processor is also equipped with up to 192 MB of L3 cache and 12 memory channels.
Additionally, Microsoft has integrated accelerators specifically for compression and encryption tasks, which it states account for approximately 33% of typical cloud operations, allowing these functions to run without occupying general-purpose cores. Microsoft has taken a unique approach by modeling over 140 real Azure scenarios and using AI-driven simulations to evaluate more than 350,000 configuration options before finalizing the architecture. The initial results from production deployments are encouraging, with one collaborative service noting a 45% performance improvement and a 35% reduction in computational demands compared to previous platforms.
The chip also includes hardware memory encryption by default and supports Arm’s confidential computing features to enhance workload isolation for enterprise customers.