-.- i'd rather they show us whether its able to push the refresh rate to 120hz rather than just showing the brightness thingy, it doesn't improve your gameplay in anyway.

I am sorry but god made my eyes able to see the difference for low and high fps.

And FYI high refresh rate is able to see through human's eyes, go to any TV shops and take a look at those 3D LED TV (not 3D enabled of course), and look back at those normal range, you will see the difference of refresh rate.

I'm still finding ways to see the difference for input lag (not response time), input lag never mentioned in the official tech spec, usually high input lag can be seen in IPS monitors.