You do need a sandy bridge cpu if you want the framerate to not drop when there are lots of monsters, it doesn't need to be overclocked but I don't think you can do it with any other architecture (maybe an overclocked nehalem).
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."
-Ron Swanson
"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
-Ron Swanson
"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony