The phrase "memory footprint" refers to the amount of computer memory or space taken up by a particular program or application. It is a measurement of the amount of resources used by that program to run or store data. Full definition
The 2013 version offers a smoother performance profile, enhanced run - time performance and reduced memory footprint. (mcvuk.com)
Applications will be better optimized, while in - memory footprint of compiled code is reduced. (9to5google.com)
3.8 includes three important and interesting changes for mobile devices — support for open source NVIDIA Tegra and Samsung Exynos DRM drivers, support for the Flash - Friendly File - System, and a lower memory footprint — in some cases much lower. (androidcentral.com)