Apple's A11 Bionic chip has already passed through GeekBench 4 benchmark test and achieved remarkably high results and beating its competitors the Galaxy Note 8, Galaxy S8 and OnePlus 5 by a large margin. The iPhnoe X achieved 10,069 score in the multi-core benchmark test (Note8: 6784). The iPhone X was also went through Antutu benchmarks with a combined score of 226,058, which is 45,000 points ahead of the leading Android smartphone which is the OnePlus 5 (181,507). Just so you know, the OnePlus 5 runs Qualcomm MSM8998 Snapdragon 835 chip.
Those leaked early benchmarks just show us what we've probably already should have expected. The A11 Bionic chip is a very powerful processor. I don't know if people will feel the different between the iPhone X and the iPhone 7, but there is no doubt that a more powerful processor was needed to support the iPhone 8 and iPhone X advanced camera, AI and AR features.
If you search for the most powerful smartphone on the market, I guess choosing your new phone won't be such a hard task. I've also read an article on bgr.com that said that the iPhone X processor is more powerful than the newest MacBook Pro. Just for comparison, the most powerful 13-inch MacBook Pro scored 4592 and 9602 in Geekbench 4 test, which beats the iPhone X in the single-core test, but the iPhone X wins in the multi-core test.
The bottom line is that the iPhone X features a superb powerful processor, and probably has more power than needed to run any app out there. That powerful processor leaves room for Apple to innovate and improve the phone's capabilities in the future. Everything should just run battery smooth.