Ryzen CCD Thermals
Ryzen CCD Thermals
It's typical for CCD1(Tdie) and CCD2(Tdie) to vary slightly by about 10 °C.
It might simply be that one CCD had more stress in its cores than the other. The idle readings seem nearly the same for both. Have you attempted a full-array 100% workload and measured the temps afterward? Running something like Cinebench could also help.
The temperature difference between Tdies in cinematic scenes is only about 3°C, which isn't very noticeable.