If I'm correct, the beta is about 364 MB.
Now, I don't know much about this, but I seriously doubt that the FULL game is only 314 MB.
It could be that 364 is only really the locked characters and the rest are somehow cleverly stored away.
Mind you that the first inFamous is around 7345 MB.
So I'm not sure if this truly EVERYTHING in the game.
It could be some guy on gamefaqs just trolling us.