Power 10 vs Power 11: Which Upgrade Changes Enough to Matter?
Compare matching Power 10 and Power 11 tiers by workload fit, software cost, capacity, lifecycle, and the five-year operating decision, not generation alone.
Power 11 is worth the move when it removes a real limit: unsupported software, too little capacity, an expensive software tier, a facilities problem, or a short remaining lifecycle. If Power 10 already meets those needs, a newer name alone does not make the business case.
Five decisions that determine whether the upgrade matters
| Decision | Stay with or buy Power 10 when | Choose Power 11 when |
|---|---|---|
| Workload | The measured workload fits with tested growth room. | Consolidation, AI, memory, storage, or I/O demand reaches a Power 10 limit. |
| Software tier | The Power 10 configuration keeps the required IBM i tier and licenses affordable. | A Power 11 feature delivers the needed work in a better tier or with fewer activated cores. |
| Facilities | Existing circuits, UPS, cooling, and rack space remain practical. | The S1112 replaces a larger entry system or newer capacity reduces system count. |
| Lifecycle | Support coverage and parts risk still match the planned ownership period. | The five-year plan would otherwise end with another forced refresh. |
| Five-year cost | Purchase savings remain after support, energy, software, migration, and risk. | The newer system lowers the complete five-year cost or buys enough headroom to avoid another project. |
Compare the matching model pairs
S1022 vs S1122
The S1122 raises the ceiling from 40 to 60 cores and more than doubles maximum internal storage while keeping 4 TB maximum memory.
S1024 vs S1124
The S1124 moves from 48 to 60 cores with the same 8 TB memory ceiling. Price P20 and P30 software before choosing a processor feature.
E1050 vs E1150
The E1150 moves from 96 to 120 cores for AIX and Linux consolidation. It still does not support IBM i.
E1080 vs E1180
The E1180 raises the full-scale ceiling from 240 to 256 cores and retains IBM i, AIX, and Linux support.
Use the same assumptions for both quotes
- Write down the current workload, peak demand, growth, and resilience target.
- Price hardware, software, support, migration, facilities, and energy for the same five-year period.
- Run the preferred Power 11 build through the configuration validator, then send the same brief through the pricing request.
Model tier comparison: max cores and memory
| Tier | Power 10 Model | P10 Max Cores | P10 Max Memory | Power 11 Model | P11 Max Cores | P11 Max Memory | Core Increase |
|---|---|---|---|---|---|---|---|
| Scale-out, dual-socket entry/mid | S1022 (9105-22A) | 40 | 4 TB | S1122 (9824-22A) | 60 | 4 TB | +50% |
| Scale-out, high-throughput | S1024 | 48 | 8 TB | S1124 (9824-42A) | 60 | 8 TB | +25% |
| Enterprise scale-up, mid | E1050 | 96 | 16 TB | E1150 (9043-MRU) | 120 | 16 TB | +25% |
| Enterprise scale-up, flagship | E1080 | 240 | 64 TB | E1180 (9080-HEU) | 256 | 64 TB | +7% |
What Else Changed
- IBM states Power 11 delivers up to 2.5x higher performance than Power 10, workload-dependent.
- IBM states Power 11 delivers approximately 20% lower energy consumption than Power 10 at the same utilization level.
- Power 11 adds adaptive frequency boost reaching up to 4.8 GHz under low load, and reserves additional spare cores per socket for improved reliability versus Power 10.
- Power 11 requires HMC v11 (7063-CR2 or vHMC); Power 10 HMC requirements do not carry forward.
Sources: https://www.ibm.com/products/power, https://www.ibm.com/products/power-e1080, https://www.ibm.com/products/power-s1024