The processor part is Snapdragon 888 is stronger, but it's hotter. Kirin 9900 heat control is better, but the CPU and GPU performance is not as strong as 888, after all, 9900 uses the framework released by the previous generation of ARM, 888 is the latest framework, so 888 in addition to heat and other 9900 have a crushing situation, so 888 is better than 9900. But it's good enough for everyday use