https://wccftech.com/ios-12-final-stacked-up-against-ios-11-4-1-in-new-speed-test-video-see-the-improvement/

Apple has finally released iOS 12 to the general public with a boatload of new features and performance upgrades. If you are deciding on whether to update to the latest build or not, check out the speed test conducted by a YouTube channel. The speed test has been conducted against iOS 11.4.1 on older iPhone models. This will give you an in-depth look at how the performance has improved on older devices. So let’s check it out.

The latest build brings new forward-facing additions such as Siri Shortcuts, new notification management, performance improvement on older devices and much more. For now, we will be stacking iOS 12 final version against iOS 11.4.1 in a new speed test to see how performance has improved on the latest build. The speed test is conducted on iPhone 5s, iPhone 6, and iPhone 6s.