https://wccftech.com/ios-14-speed-test-comparison-performance/

After announcing the new iOS 14 with all the nifty features and visual changes, Apple saw fit to release its beta to developers soon after. Apple on storage did not say anything on how the performance will be with the new firmware and how it compared to iOS 13. However, if you must know, check out the speed test comparison conducted by the YouTube channel AppleBytes. The test compares the speed of iOS 14 beta against iOS 13.5.1.

For your ease, we have embedded the video below that shows how iOS 14 beta stacks up against iOS 13.5.1 in a speed test comparison. The test was conducted on older iPhone models which include the original iPhone SE, iPhone 6s, iPhone 7, iPhone 8, and iPhone XR. This will give users a clear idea of how the performance is older iPhone models and whether they should update to the latest build or not.