Because the architectures are so different, the PS4 cannot simply "read" PS3 code. A software wrapper or "converter" isn't just translating language; it has to emulate an entirely different processor. This requires significant processing power—often more than the PS4 can natively spare while running a game.

: A bootable USB drive containing a PS4-compatible Linux distribution like Gentle Linux .

If you see a tool claiming:

due to the fundamentally different hardware architectures (Cell vs. x86). Unlike PS1 or PS2 games, which can be wrapped in a native PS4 emulator, PS3 games require significantly more power to emulate than the PS4 provides.