el capitan vs sierra performance jan 2017

10.11 was another stability release, running much smoother than they buggy 10.10. 10.10 introduced a UI overhaul, changing the 3d look of OSX to the flat look if iOS, and introducing even more integration with iOS devices. 10.9 was the first free version of OSX, and was a minor upgrade from 10.8, introducing more iOS and iCloud integration. 10.8 was another stability release, the most notable new feature being the addition of iMessage. 10.7 is where more iOS features begin showing up in OS X, such as launchpad and multitouch gestures. 10.7 introduced a new spaces design, as well as some UI redesigns with different button icons, and smaller traffic lights. 10.6 was notable for cutting of PowerPC Macs. 10.6 was a stability release, improving on 10.5, and not really adding any new features. 10.5 brought on a more 3d glassy look, and introduced features such as spaces and a reworked Finder. OS X started getting sophisticated around 10.3, when a more complete finder interface was added and overall system stability improved. 10.0-10.2 were fairly primitive operating systems, pretty much a beta.

Kinda hard to sum it briefly, as OS X has been going for almost 20 years now.

El capitan vs sierra performance jan 2017