IPhone 18 Pro Max vs. iPhone 15 Pro Max Speed Test: Is the Three-Year Leap Worth It?

Apple’s iPhone 18 Pro Max is pitched as a major step up from the three-year-old iPhone 15 Pro Max, with differences most noticeable in speed, sustained performance, thermals, and display design. The 18 Pro Max is said to use an A20 Pro chip clocked at 4.93GHz and 12GB of RAM, while the 15 Pro Max runs the A17 Pro with 8GB of RAM. The article also highlights better battery endurance and improved cooling to reduce throttling during long gaming or video work. A larger 6.9-inch display and slimmer bezels, plus a smaller Dynamic Island, round out the changes.