Except the one printed number is 10x larger than the other, there will be absolutely no visual difference at all.
The qouted number is something called Dynamic Contrast. They achieved this by adjusting the backlight brighter or dimmer according to the scene.
If the screen is mostly dark areas like a horror game. Then the backlight would be turned down. Naturally all the blacks would look blacker but unfortunately the difference (or contrast) between each shade remains the same since the entire screen is dimmed by the same amount.
Intead you might find this feature annoying since you are still playing a video game, who in the right mind would lower brightness and decrease visibility of the screen when trying to shoot zombies in the...