https://wccftech.com/heres-how-ios-12-beta-5-stacks-up-against-ios-11-4-1-in-a-speed-test-comparison/

Apple had seen fit to release iOS 12 beta 5 to developers on Monday. The new beta build features various front-facing additions along with several hidden hints corresponding to the forthcoming features coming to the HomePod as well as the future iPhone models. However, one aspect that we’re all curious with every iOS release is the performance. YouTuber iAppleBytes have conducted a speed test comparison on different iPhone models running iOS 12 Beta 5 and iOS 11.4.1. So let’s dive in to see some more details on the matter.

The YouTuber has conducted the speed test comparison running iOS 12 beta 5 and iOS 11.4.1 on different iPhone models constituting the iPhone 5s and all the way up to the iPhone 8. This will allow you to see the performance gains with each device. Similar iPhone models have been stacked side by side running iOS 12 beta 5 and iOS 11.4.1. Let’s see how it goes.