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Power Up, Up and Away: What IBM Power10 Means Now for IBM i and What Power11 Will Be

Mark McDonnell
July 2025

What the Future Holds for IBM Power Architecture

IBM has plans now and into the future, at least until the year 2040. The most recent releases of Power systems in terms of overall performance have almost doubled or exceeded their predecessors. 

Performance improvements from Power9 to Power10  

The IBM Power10 released in September 2021, continues a progression of doubling up of its predecessors by making components smaller and more powerful. After the previous models of the 8th and 9th Power generation, one can speak of a quantum leap with the Power10. Key features include:  

  • Power10 architecture: Up to 15 cores per processor, advanced SMT8 multithreading, and support for up to 240 cores in high-end systems.  
  • Structure width: 7 nanometers vs. Power9 - 14 nanometers  
  • Number of transistors: 18 billion vs. Power9 - 8 billion  
  • Maximum cores per processor: up to 30 vs. Power9 up to 22  
  • Key performance stats: Double the performance per watt, up to 3x faster in the same energy footprint vs. POWER9.  
  • Memory and bandwidth: Open Memory Interface (OMI), up to 409 GB/s per socket, and support for up to 64TB system memory.  
  • I/O and storage: PCIe Gen5, NVMe flash, up to 8 high-speed adapter slots, and advanced system interconnects (OpenCAPI, PowerAXON).  

CPW: How IBM measures overall system performance  

IBM uses its own measurement system to rate server performance between its Power Servers, called Commercial Processing Workload. CPW is a measure of computers to compare computer system models in terms of how efficiently each system processes a typical workload of commercial applications involving frequent database access. The CPW also represents a test of database commitment control, concurrent data access by many users, and a range of updating complexity.   

In the upper right corner of the following graphic, you will see Power10 has increases of over 100% CPW over Power8 and Power9.   

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What’s new and improved in Power11  

The IBM Power11 released in July 2025 is architected with a redesigned processor, hardware architecture, and virtualization software stack. Key features include:  

  • Availability: Designed for 99.9999% uptime with zero planned downtime for system maintenance, enabled by autonomous patching and automated workload movement.  
  • Cybersecurity: Aims to deliver less than one-minute guaranteed ransomware threat detection through IBM Power Cyber Vault, an integrated cyber resiliency solution. It also incorporates NIST-approved quantum-safe cryptography.  
  • AI Integration: Power11 will be the first IBM Power server to support the IBM Spyre Accelerator, a system-on-a-chip purpose-built for AI-intensive inference workloads, expected in Q4 2025.   
  • Performance: Aims to deliver up to 55% better core performance compared to Power9 and up to 45% more capacity with higher core counts in entry and mid-range systems compared to Power10.  
  • Energy Efficiency: Designed to offer twice the performance per watt versus comparable x86 servers and up to 28% better server efficiency with the new Energy Efficient Mode.  

For the first time ever, the Power11 general availability will simultaneously include high-end, mid-range, and entry servers as well as IBM Power Virtual Server in IBM Cloud. With support for autonomous operations, Power11 delivers intelligent performance gains that reduce complexity and improve workload efficiency.  

Power11 offers up to 55% better core performance compared to Power9 and has up to 45% more capacity with higher core counts in entry and mid-range systems compared to Power10. This upgraded performance means that with Power11, enterprises are positioned to achieve enhanced flexibility and security and to transform their enterprise processes through automation.  

Ease of migration through system continuity and system integration  

The lower case ‘i’ in IBM i stands for integrated. IBM i is a fully integrated operating system where the database, middleware, security, runtime, and hypervisor are all part of the same stack and licensed as a single unit. This integration aims to lower the total cost of ownership (TCO), simplify system management, and improve efficiency compared to systems with separate components. 

In the most recent IBM i operating system release 7.6, a fully integrated multi-factor authentication (MFA) extends password authentication to include an additional authentication factor used to verify your identity. This authentication incorporates a time-based one-time password (TOTP) key, which is stored in the user profile and is architecturally protected similarly to the password. The TOTP key is used, along with the system time, to generate a TOTP value. The TOTP value is presented as an additional factor when authenticating. 

This MFA solution works "out-of-the-box".    

  • No additional software required 
  • No agent configuration  
  • No server setup to another system  
  • No firewall port needs to be opened 

Windows does not provide multi-factor authentication (MFA) as a built-in feature for local user logins. While Windows Hello offers password-less authentication, it is not a true MFA solution as it is local-only and requires separate setup on each machine. To implement MFA for Windows login, you need to use a third-party solution.  

Use of trusted and experienced consultants 

Briteskies has experience helping to identify and solve any roadblocks preventing you from fully and effectively using your current IBM i system, and plans to move on to new features and better performance with an updated system and an updated operating system release.  

Among the IBM i services Briteskies offers include: 

Achieve your IBM i / AS400 goals today

 

About Briteskies

Briteskies, an IBM partner for 25 years, offers comprehensive services for IBM i (AS400) systems, including consulting, development, staffing, security audits, EDI solutions, and integrations. Our team combines over 40 years of IBM i expertise with fresh talent, delivering both legacy knowledge and innovative perspectives. Skilled in every RPG iteration and modern technologies like Node and API solutions, we seamlessly integrate applications to support business goals. Dedicated to modernization, security, and efficiency, we help businesses optimize and upgrade their IBM i environments for long-term success. 

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