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Blurs areas outside the camera’s focus, usually in cutscenes or aiming effects.
FPS
Very low
Visual
Low
VRAM
Very low
CPU
None
Latency
None
What it does
Depth of field can add cinematic focus but often has only a small performance cost.
Games may also call it: DoF
Decision guide
Lower it when
Disable it for a clearer image or when the effect is distracting during gameplay.
Keep it high when
Keep it when the game uses it well in cutscenes and performance is already stable.
Handheld advice
Treat it as a preference option, not a primary optimization lever.
Restart
Usually not required
Some games still apply changes only after reloading a scene or restarting.
Do not overread the meter
Some high-quality bokeh implementations can be heavier than the generic score suggests.