macOS Tahoe 26.3.1 Renames M5 High-Performance Cores to 'Super' Cores
Ars Technica reports that macOS Tahoe 26.3.1 retroactively renames the M5’s high-performance cores from “performance” to “super” cores, aligning with the new M5 Pro/Max naming. The change appears only cosmetic—no real performance difference for existing M5 Macs—while updating System Information and Activity Monitor and enabling Studio Display support. Older M-series chips (like the M4) are not affected.