Network card part numbers...differences?

I have some cards I'm trying to understand the differences in

4250 cards:

  002-0204-50

  002-0205-58 

These are both 2 port  with IPsec.   The first is copper, second is SFP.  Is that the only difference?

 

4500 cards:

  002-0601-58

  002-0603-58

These are both 4 port SFP cards.   The second one has more "processors".

 

Is there are table that shows part numbers and capabilities?   Or do I need to power up some boxes?