The killer feature that could make the iPhone 12 feel much, much faster

The new iPhone 12 is probably going to have the expected upgrades: a faster processor, the latest iOS software, 5G wireless connectivity and a host of other updates that should make the iPhone 12 the fastest smartphone Apple ever produced.

source https://www.cnn.com/2020/08/30/tech/iphone-12-high-refresh-rate-screen/index.html