All of those are registry hives, and their mounting and editing causes their databases to have different timestamps in the entries (content, not file date).
Also registry is known for all kinds of hashed temporary entries, meaning they are generated in the moment, unique numbers, usually sessions and cache IDs.
More clear comparison on the hives would be to mount them, extract the REG file of the root registry key for each and compare those REG files, not the direct databases.
You can easily mount them with the tool, go to the Integrate - Registry page after loading the image, and on the right side Edit hive. Not all of them are listed, but if you confirm for those 4 or so, should prove the point.
Still you will have to ignore some entries, you can post any that triggers the difference, but not sure of.