I’m gonna blow your mind by telling you there are already working PS4 and Xbox One emulators, although both only support a small number of games so far
PS3 and Xbox 360 can be emulated very well by a modern PC, the majority of games work without glitches
PS3 is the trickiest. They had that weird Cell architecture which is more difficult to emulate than simply “less-powerful x86” emulation required for more-recent consoles.
I’m gonna blow your mind by telling you there are already working PS4 and Xbox One emulators, although both only support a small number of games so far
PS3 and Xbox 360 can be emulated very well by a modern PC, the majority of games work without glitches
PS4 is actually easier to emulate than PS3, because former has regular x86 architecture, but latter has a very weird CELL/PowerPC architecture CPU.
PS3 is the trickiest. They had that weird Cell architecture which is more difficult to emulate than simply “less-powerful x86” emulation required for more-recent consoles.