Table of Contents 1. Executive Summary 2. Architectural Evolution: Power9 → Power10 3. Core & SMT Differences 4. Performance per Watt and Efficiency 5. Memory, I/O, and Encryption 6. Real-World Enterprise Case Studies 7. Total Cost of Ownership & Licensing 8. Migration Considerations: Power9 → Power10 9. Final Takeaways for IT Decision-Makers 1. Executive Summary IBM Power10 delivers markedly higher performance and efficiency compared to Power9—typically 20–30% more performance per core, and up to 2.6× better performance per watt. It brings new encryption, AI inference, and virtualization capabilities. However, upgrading requires architecture planning, cost evaluation, and alignment with workload characteristics. 2....