hmm appears my monitor i'm using for this website right now is darker on top and lighter on bottom, cause when looking at them on the OP the top image looks dark and can't read the banner's and stuff in background as easy as the bottom picture.
Of course though they are same image and if I put them in new tabs each and cycle between tabs it is exactly the same, but thanks to this thread I realized that the monitor has a slight tint problem. Luckily this is my 3rd monitor in my setup.
edit: just sat up in my chair with good posture and the problem was fixed. Apprantly my slouching caused the screen to have that tint problem. They look identical sitting up straight, as they shoudl seeing as they are not only super low res images, but the same freaking image.