For the most part, cat 5 is cat 5, cat 6 is cat 6, cat 7 is cat 7 - for internal use.
If you're running through walls, or outside, or directly burying the cable, then other factors come into play...
For a basic in-home (or office) cable, anything that's 'pure copper', 'copper core' etc is = to any other of the same spec. Just watch out for, and avoid CCA 'copper clad aluminium' cables.