How do low-poly and high-poly 3D presentations differ in performance and quality?

Low-poly 3D presentations have fewer polygons, delivering better performance but simpler visuals; high-poly ones have more polygons, offering detailed quality but requiring stronger hardware. The core difference lies in polygon density: low-poly prioritizes efficiency for real-time scenarios like games or AR, while high-poly focuses on intricate details for static renders or high-end visualizations. For real-time applications needing smooth interaction, low-poly is suitable; for projects demanding lifelike details, high-poly works with adequate hardware support.