I don't know about the x470-F, but the previous versions of HWINFO64 showed the same temp 3 4 5 6 values for my B450-E Gaming, but since some bios updates and program version 6.20, there are four named values in their stead. CPU socket temperature, motherboard temperature, chipset temperature, CPU vrm temperature, in that order. I think since the X470-F is a more premium board, it has them too.
The values are not the same, so they are from separate sensors. The current program version cannot read the vrm sensor, but surely it'll be adressed in the future.