The first option, "Presets" lets you quickly set all following options; you may pick from Recommended, Max, Graphics Priority, Balanced, and Performance Priority.
RE3 can be played in DirectX 11 or DirectX 12. On the next page, we'll take a closer look at how the two APIs compare in terms of performance
Display Mode options are fullscreen, windowed, and maximized window.
Rendering Mode lets you enable the interlaced TV-like visuals Resident Evil featured a long time ago. I doubt many people will activate this setting nowadays.
"Image Quality" really means "Resolution Scaling", the options range from 50% to 200% in 10% steps.
The FPS cap can be set to 30 FPS, 60 FPS, and unlimited.
V-Sync can be disabled, too.
Anti-aliasing options are off, FXAA, TAA, FXAA+TAA, SMAA—no MSAA
Texture quality lets you change the quality of textures, depending on how much VRAM you've got. The range goes from "Low (0 GB)" to "High (8 GB)"
Motion blur can be disabled completely
If you wonder why the game looks weird, warped and blurry—turn off Lens Distortion. No idea why anyone would want to play with this horrible setting enabled, and it's enabled by default
Field of view can be adjusted too, in another section called "Camera". While there aren't any values listed, the range is sufficient in both directions.