is it really possible to tell the difference honestly
Yes, especially while playing the game. There is indeed a difference in how the game handles. Play an FPS locked at 30 then play another that can go up to 60 and tell me that doesn't feel different. Because if you say it doesn't you are wrong.
30 fps is playable
Playable, yes. Just like hardtack is edible, or water is drinkable. It's not a filet mignon or a ten year old aged Cabernet Sauvignon, but it'll do.
arent the next gen consoles locked on 60 fps to make the pc master race shut the hell up
Name one game it can do that for.