As we've said before, the PS4 Pro is the only PS4 model that outputs in 4K, so it's ideal if you have a 4K TV. If you don't own a 4K TV yet, many games will benefit from higher frame rates, improved texture quality and new lighting effects. That said, if you already have a PS4 and are stuck with a 1080p TV, you won't see a huge improvement and might be better off to stick with your current hardware.