IBM server rentals (especially IBM Power Systems) use IBM’s proprietary POWER processors, not Intel or AMD CPUs. These CPUs are specifically designed for enterprise, high-performance workloads.

Here’s a clear breakdown of the CPU types you’ll typically find in IBM server rental environments:

🔧 1. IBM POWER Processor Family

All IBM Power servers—whether rented on-premise or via cloud—use CPUs from the IBM POWER architecture (RISC-based).

• Designed for high throughput, parallel processing
• Used in enterprise servers, supercomputers, and mission-critical systems

⚡ 2. Common CPU Generations in IBM Server Rental

🟢 POWER9 (Widely used)

• Found in systems like:
  • IBM Power S922
  • IBM Power E980
• Typical specs:
  • 12–24 cores per chip
  • SMT (Simultaneous Multithreading)
  • High cache and memory bandwidth

➡️ Still very common in rental environments due to cost-performance balance
➡️ Used in supercomputers like Summit

🔵 POWER10 (Most common in modern rentals)

• Used in newer systems like:
  • IBM Power S1022
  • IBM Power E1050
  • IBM Power E1080
• Key features:
  • Up to 10–15 cores per CPU
  • SMT8 (8 threads per core → up to 120 threads per CPU)
  • Large cache (up to ~120 MB L3)
  • Built-in AI acceleration

➡️ Designed for:

• AI workloads
• Hybrid cloud
• High-performance databases

🟣 POWER11 (Latest generation, emerging in rentals)

• Introduced around 2025
• Focus areas:
  • Better energy efficiency
  • Higher performance per core
  • Enhanced security & automation

➡️ Increasingly available in new enterprise rental offerings

🧠 3. How CPUs Are Offered in Rentals

In IBM server rental (including IBM Power Virtual Server), CPUs are not just physical chips—you configure them as resources:

• Cores (vCPUs):
  • 1 core → 100+ cores depending on system size
• Processor modes:
  • Shared (cost-efficient)
  • Dedicated (high performance)
• Compatibility modes:
  • Run workloads on POWER9/10/11 ISA depending on need

➡️ Servers hosting these CPUs include models like:

• IBM Power S922
• IBM Power S1022 (POWER10)
• IBM Power E1080

🚀 4. Why IBM Uses POWER CPUs (Not x86)

• Higher parallel processing capability (SMT8)
• Better memory bandwidth
• Optimized for:
  • Oracle databases
  • SAP HANA
  • Banking workloads

➡️ POWER CPUs are built for throughput and reliability, not just clock speed.

🔑 Bottom Line

In IBM server rentals, you’ll typically get:

• POWER9 → Cost-effective, widely used
• POWER10 → Most common today, high performance + AI-ready
• POWER11 → Latest, gradually entering rental offerings

👉 All of these are part of IBM’s POWER CPU family, designed specifically for enterprise and high-performance computing—not general-purpose consumer workloads.