[pivo]

I can see a difference between pairs of each screen shot. I'm pretty confident though that I won't be able to tell when I don't have these nice comparison images, or care about the difference in practice.

[lisper]

I can't tell which is which even when I blow them up to the point where I can see the individual pixels.

[pivo]

I opened them in my browser in separate tabs and flipped back and forth between them. Very subtle difference for me, but I could see it.

[lisper]

Yes, I can see the difference too. I just can't tell which one is supposed to be the "blurry" one. They both look equally sharp to me.