:Faceplam:
No you don't decide at what FPS (Frame Per Second) you run a Game... I mean not in the way you probably think at least...
FPS is a mesure on how fast the single image (Frame) are rendered and displayed on your monitor, more complex imagae (highter detail adn effect for example) thake more resources and thus more time to be rendered.
A slow FPS value mean that your came feel jerky, command respond with some delay and i general doesn "run smoooth", highter DPS instead is all the opposite, so fluidity and responsivnes.
In general the below limit for a "good looking" game is considered 60 FPS (since the human eyes can register an average of 30 FPS if you double you don't loose quality), but of course this is subjective feeling...
As a general rule, more detail, more effect and the highter resolution (mean more image pixel to render) reduce the FPS performance by some degree, so larger monitor require, for being used at the maximum resolution you buy them for, a good amount of computational power and that mean both a better CPU and a GPU, how better depend on the game, more are better optimazided then other or simply require less resources for run well at full resolution (for example WOW require far less power then Project CAr to be run at max settings on a larger monitor...)
Hope to have been able to provide a bit of explanation on FPS and some consideration the help in the choice of the monitor....
For some reference specfic on SC take a look at the lemetry page:
robertsspaceindustries.com
Howering over a square provide you with a description of the CPU and the GPU used, don't take them as a golden trut, but is a good reference to estimate the permance a similar system should have.
