Reason:
The CPU and GPU of Huawei Kirin chip are often designed in the public version of ARM, and the technology of TSMC is often used in the process. MediaTek Tianji 9000 adopts TSMC's 4nm process, and its CPU is composed of 3.0GHz X2 super core +3*2.85GHz A7 10 large core +4* 1.8GHz A5 10 small core.
It can be seen that the process of Tianji 9000 is also TSMC, and the CPU and GPU are also public architecture, similar to Kirin chips. However, at present, Huawei's Kirin 9000, the CPU adopts A77+A55 architecture, and the GPU adopts Mali-G78, which is completely different from Tianji 9000.
Extension:
In fact, even if both CPU and GPU adopt the public version scheme, the final product will often be different, which has been reflected in each generation of products, so we can't say that CPU and GPU are in public version. In fact, there are differences in details.
In addition to CPU and GPU, mobile phone SOC also includes ISP and AI, and baseband is often taken into account. In these places, the products of Huawei and MediaTek are obviously different, and these parts are also very important for the final performance of SOC.