Monitor resolution is one factor...higher means smaller pixels.Anti-aliasing is a big factor...more means no crisp dots and the "far away plane dots" get blurred into the sky.
I've got an older system by today's standards that still runs the game well by my standards.
You of all the people should know. I bow to your expertise
He and McPixel are the ones who can speak with authority.
I better not run across "ImAPixel" somewhere in the arenas...