The iPhone 13 Pro Max can charge a bit faster than other models, according to tests done by YouTuber ChargerLAB (and backed up by other tests), which show that the phone sips up to 27 watts of power when plugged into a compatible charging brick. If you have a 13 Pro Max and want to fill up its massive battery as fast as possible, you may want to look into getting a 30W charger that, according to tests cited by @duanrui1205, can charge it from zero to full in less than 90 minutes.
This appears to be an upgrade from the previous generation — 9to5Mac reports that the iPhone 12 caps out at around 22W charging speeds. That’s about a 5W boost, which is nothing to sneeze at. The benefit of a bigger charger is limited to the Pro Max, according…