Sid Meier's Civilization V is a turn-based 4X strategy game where you guide a civilization from ancient times to the space age across hexagonal maps. Players spend long single-player sessions managing cities, researching technologies, moving units, and negotiating with AI opponents and city-states. Sessions often stretch for hours or days on huge maps with many civilizations, creating complex decision trees that reward patience and strategic depth. At 1080p, the visual demands remain light enough that the game runs smoothly at high or maximum settings on modest hardware. The real performance load comes from the simulation itself, not rendering: late-game turns require heavy CPU work for unit pathing, diplomatic calculations, AI decision-making, and city growth processing. Larger maps and higher difficulty settings amplify these demands, leading to noticeable slowdowns as your empire expands. Mods from the Steam Workshop, such as major overhauls that add units or rebalance mechanics, can push RAM usage and turn times even higher. Common pain points include long end-turn waits that break the strategic flow, minor stuttering when scrolling crowded maps, and occasional hitching during diplomacy or combat resolution. Many players mistakenly focus their budget on a powerful GPU expecting action-game behavior, only to discover the CPU is the limiting factor for smooth marathon games. Before choosing a PC, understand that Civilization V rewards strong multi-core performance and sufficient fast memory more than raw graphics horsepower, especially when playing at 1080p where resolution scaling has little impact on turn speed.