The PS4 has an extra 256MB of DDR3 ram.

[Kongfucius]

RenCutypoison said:

Kongfucius said:

Interesting. Unlikely I know, but I wonder if any devs will experiment with using this memory and the PS4's secondary processor to help make their games look better - I think Naughty Dog might have done something similar when they made the Jak and Daxter games on PS2 where they used the built in PS1 chips to improve the performance. I'm fully prepared to be proved wrong on that though

What if sony made a new model without retrocompatibility ?

I wouldn't have taken the risk

Well you see that's why I didn't say it was gospel. I think it was mentioned in the vita thread in around july, because the way in which J+D was so closely tailored to the PS2's hardware including the old PS1 chips was one reason cited why the HD collection on vita was a pretty poor port by all accounts. That said I suppose its still possible, bearing in mind that until PS3, I can't think of a console which initially had built-in BC which was later removed