granularity -
The extent to which something is granular.
Wikipedia
Granularity is the extent to which a system is broken down into small parts, either the system itself or its description or observation. It is the "extent to which a larger entity is subdivided. For example, a yard broken into inches has finer granularity than a yard broken into feet.
OmegaWiki Dictionary
Ω
granularity The quality of being composed of relatively large particles.
granularity The smallest size that can be set or addressed.