IBM Spyre Accelerator
A PCIe4 AI inferencing card IBM ships for IBM Z, LinuxONE and Power11 systems to offload generative and agentic AI workloads from the main processor. On Power11 it is driven from a Red Hat Enterprise Linux or Red Hat OpenShift AI partition, and as of September 2026 IBM has not documented a way to use it from an IBM i partition.
Spyre dates
- Oct 7, 2025IBM introduces Spyre for commercial availability.
- Oct 28, 2025Generally available for IBM z17 and LinuxONE 5.
- Early Dec 2025Generally available for Power 11.
How many cards fit
Maximum Spyre cards per system
Power 11 holds its cards in ENZ0 PCIe4 expansion drawers. Limits are from IBM's Spyre Accelerator for Power documentation, version 1.3, September 2026; the October 2025 launch announcement said 16 per Power system. One partition holds up to 24.
How it compares with Matrix Math Acceleration
Matrix Math Acceleration vs the Spyre card
| Matrix Math Acceleration | IBM Spyre Accelerator | |
|---|---|---|
| What it is | Built into every processor core | A separate PCIe4 card |
| Where you find it | Every Power 10 and Power 11 core | 8 to 48 cards by Power 11 model, in ENZ0 expansion drawers |
| Usable from IBM i | Yes, along with AIX and Linux | Not documented as of September 2026 |
Can IBM i use it?
Not by any documented route. IBM's Spyre documentation requires Red Hat AI Inference Server on RHEL 9.6, 9.8 or 10.2, or Red Hat OpenShift AI. So a Power 11 owner uses Spyre from a Linux or OpenShift partition. Neither the documentation nor the October 2025 announcement mentions IBM i.
Related Terms
Matrix Math Acceleration (MMA)
An on-chip acceleration feature in IBM Power10 and Power11 processors that speeds up the matrix math operations used in AI inferencing, without requiring a separate GPU.
IBM Power S1112
IBM's entry-level, single-socket Power11 server, announced July 15, 2026 and generally available July 24, 2026, built for edge and branch AI inferencing with on-chip Matrix Math Acceleration. It is the first Power11 machine available in IBM i's low-cost P05 software tier.
IBM i
IBM's operating system for Power servers running traditional AS/400-lineage business applications, with Db2 for i built directly into the OS.