Ibm Z Mainframe - GoKawiil

IBM previews mainframe chip that natively runs both Z and Arm instructions

At Hot Chips 2026, IBM unveiled an early look at a future mainframe processor featuring 11 IBM Z cores on a 2-nanometer process, clocked above 5.7 GHz, capable of natively executing both z/Architecture and AArch64 instructions on the same cores without emulation. The chip will include specialized accelerators for AI fraud detection, I/O, compression, cryptography and sorting, plus a large cache hierarchy topping out near 3.5 GB of virtual L4 cache. IBM hasn't named the chip or its host system but expects it around 2028, likely powering a future z18-class mainframe.

techspot.com · 2026-08-25

IBM debuts mainframe chip whose cores natively run both Arm and Z instructions

IBM unveiled a new mainframe processor at Hot Chips that will power future IBM Z and LinuxONE systems, marking the first chip whose cores can execute both IBM's proprietary instruction set and Arm's, switching between them in nanoseconds. Each of the chip's 11 cores is built to be dual-architecture rather than pairing separate Arm and Z cores side by side, letting Arm-native Linux and AI software run alongside traditional z/OS transaction workloads on the same silicon.

venturebeat.com · 2026-08-24