Kirin 9000 is good.
Hisilicon Kirin 9000 - eight-core chipset, released on October 22, 2020, is manufactured using a 5-nanometer process technology. It has one 3130 MHz Cortex-A77 core, three 2540 MHz Cortex-A77 cores, and a 2050 MHz 4-core Cortex-A55.
Of course, 9000 is better, the two processes are different, 9000 is to take 5 nm technology, and 990 is 7 nm technology.