https://wccftech.com/how-to/how-to-clear-ram-on-iphone-12-and-iphone-12-pro-models-to-enhance-performance/

The new iPhone 12 Pro models feature 6GB of RAM while the standard models feature just 4GB of RAM. However, with apps receiving updates every now and then, your device's cache memory will be filled with unwanted stuff. This makes your device slower overall. If you're experiencing sluggishness or noticing that your iPhone 12 Pro is not as fast as it was the day you got it, you need to clear its RAM. It's not that hard but it does require you to put in a little effort.

The iPhone 12 and iPhone 12 Pro models are fast, stupendously fast since they are powered by Apple's latest and greatest A14 chipset. It's no brainer that an Apple device would receiver better benchmarks because the company uses its custom silicon to optimize hardware with software. Moreover, the A-series chipsets are clocked like a mother which means you will get faster real-world performance as well the best graphics for games on a smartphone. However, over time, your smartphone tends to slow down with the number of apps and updates hitting the device. If that's so, you can easily fix it by clearing the RAM of your iPhone 12 and iPhone 12 Pro models.