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  3. CPW, rPerf, and IBM i Tiers on Power 10
Library

CPW, rPerf, and IBM i Tiers on Power 10

Updated August 15, 2026

CPW is the IBM i sizing language. rPerf is the AIX/Linux relative performance language. Core count is only one input. The software tier can change total cost more than the chassis choice.

Sources

  • https://www.redbooks.ibm.com/abstracts/redp5675.html
  • https://www.redbooks.ibm.com/abstracts/redp5684.html
  • https://www.redbooks.ibm.com/abstracts/redp5649.html

Related Models

IBM Power S1014 (9105-41B)

A one-socket 4U or tower Power 10 server for smaller IBM i and mixed AIX/Linux workloads that need more memory and storage headroom than S1012.

IBM Power S1022 (9105-22A)

A mainstream 2U Power 10 scale-out server supporting up to 40 cores and 4 TB memory for IBM i, AIX, and Linux workloads.

IBM Power S1024 (9105-42A)

A 4U two-socket Power 10 server with up to 48 cores and 8 TB memory for larger IBM i and mixed enterprise workloads.

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