: To run a game from a different architecture, the console must "emulate" the old hardware. The PS4 does not have enough raw processing power to emulate the complex PS3 Cell processor effectively.
: Tools like PS3 PKG Builder or make backup pkg are designed to convert PS3 folder-based games into PKG files for use on a jailbroken PS3 (with HEN or CFW), not for use on a PS4. ps3 to ps4 pkg converter
: Some utilities, like PS Multi Tools , can create fPKGs for PS1, PS2, or PSP games to run on PS4 via official Sony emulators. However, PS3 games are notably absent from this list because the PS4 lacks a built-in PS3 emulator. : To run a game from a different