What? Are you talking about GT6? You keep talking about 'potential' high framerates, with no evidence of anything you're claiming. Where is there any evidence GT on PS3 could output at 120fps with a single unit?
Using 4 PS3s to each output an upscaled 1080p 60fps image and joining them together in projection is not the same thing as using one piece of hardware to output a single image at that size and resolution. It's completely different, and doesn't put any more stress upon the hardware than the normal output did.
Show me where PD ever have one machine outputting one image at anything above 1080p 60fps.
Yeah sure, that's it. Sony are trying to sell and promote their 4K TVs and are pushing with their software to play 4K movies to help sell them but, even though it's as easy as just "enabling it", they've just not got around to enabling 4K on their biggest piece of hardware that would guarantee to shift 4K TVs.
Sure thing.
There it is again, you're just making things up with your 'potential'. "PS3 could hit 120fps, PS4 could easily do 4K 60fps, DC could do 90fps. Prove any of it.