The Kirin 990 and Balong 5000 are two kinds of chips. Balong 5000 is a 5g baseband chip, and Kirin 990 is a mobile phone soc. There are two versions of the Kirin 990. One is the Kirin 990 that only supports 4g networks and can achieve 5g networks through an external Balon 5000 baseband, such as Huawei nova6 5g.
The other is the Kirin 990 integrated 5g baseband, named Kirin 990 5g, this version has stronger performance and better 5g experience, strong signal and low power consumption, and represents Huawei p40 and Huawei mate30pro 5g version.