If they've made the (IMO wrong) decision to run this at 30fps, it should look pretty much identical to the other versions on more powerful consoles in terms of IQ and or physics/detail/shaders/textures etc.
Otherwise the trade-off simply isn't worth it and it really shows how poor the scalability of this engine is.
EA clearly made the right choice with FIFA. More and more people are becoming aware of how higher framerates can have a positive effect on gameplay and are willing to accept compromises to hit that silky smooth 60fps. This is disappointing and I initially had high hopes.
EDIT: Just read this might not be confirmed as 30fps, good news if it isn't, my point however is still kind of applicable to many different scenarios.... lol.