Modern arcade machines utilize a variety of display resolutions to deliver immersive gaming experiences. The most common resolutions include:

1. Standard Definition (SD) - 640x480 (4:3): Often found in classic arcade cabinets, this resolution was widely used in CRT monitors.

2. 720p (1280x720): A popular choice for mid-range arcade machines, offering a balance between performance and clarity.

3. 1080p (1920x1080): The most common HD resolution in modern arcades, providing sharp visuals for high-end games.

4. Ultra-Wide (2560x1080 or 3440x1440): Used in racing and flight simulators for an expansive field of view.

5. 4K (3840x2160): Increasingly adopted in premium arcade setups for ultra-high-definition graphics.

Some specialized machines may also use unique resolutions like 1024x768 (XGA) or custom aspect ratios for specific game requirements. The choice of resolution depends on the game type, cabinet design, and target audience.