what exactly is dot pitch?
I am about to get a monitor that has .84 mm dot pitch.
Now which is better?
???higher dot pitch or lower
"dot pitch" is how big each dot on the screen is. If the dots are too big, they fuzz over each other. If the dot are too small, the color might be too dark or you might see space between the dots. However, other stuff like sharpness, brightness, screen size, and resolution also effect how good a given dot pitch size looks.
You need low dot pitch for high resolutions or "mid-size" monitors for windows works (~.20-.26 for 1600x1200 @ 19-20" monitor is good dot pitch now). Arcade monitors run at lower resolutions, so your large dot pitch
might be fine, especially if the monitor is large, too. It will look really bad if you run windows @ 800x600 or if the monitor is small.