This thread has nothing to do with frame rate, monitor refresh rate, or how things look on screen.
This thread concerns the ideal monitor resolution concerning how much is displayed at once.
I have been using 1920x1080 for some time. I also max out field of view. Once in a while I come across someone discussing multi-monitor setups and it gets me wondering. Three monitors sounds interesting on paper, but the bezels really kill the idea for me. I've found 30" monitors with 2560x1600 resolution that sound close to two monitors (at least resolution wise), so I wonder if you gain more in what you visually see. Remember, this has absolutely nothing to do with the quality of what you see, only the quantity. By quantity, think about seeing more peripheral view.
v=EXcpDLyCcic Here is a (youtube) video that sort of illustrates things.