On raw performance might, the M4 really does live up to Apple’s promises, should deliver. Single core is up about 20% compared to all M3 chips and more than 40% compared to M2. The generational computational leap from the previous M2 iPad Pro is at least a 42% jump on single-core and multi-core.
Isn’t iOS just about heavily modified Unix clone? My jailbroken old iPad has /var/log and misc GNU directories, as well as an Apt package manager to access Cydia repos.
Not a clone, its kernel was once certified UNIX. It’s just a heavily modified UNIX.