IBM'S NEXT-GEN MAINFRAME RUNS Z/ARCHITECTURE AND ARM ON THE SAME CORE, NATIVELY

Summary from the TLDR Hardware newsletter

At Hot Chips 2026, Chips and Cheese sat down with IBM's Christian Zoellin and Christian Jacobi to dig into the engineering behind IBM's next-gen mainframe chip, the first to run both z/Architecture and Arm instructions natively on one core, plus the shift to HBM in its upcoming Spyre AI accelerator.