A couple of years ago I tried a set of D'Addario EXPs in Light guage on my 414ce. It's been a while but I do not remember feeling a tension difference from the Elixir PBs that I had/have been using. The tone was similar at first but they did not last nearly as long before the tone began to decline. I did notice that the EXPs felt more like uncoated strings and tended to squeak more than the Nanos.
I have read that PB strings, for the same guage/diameter and scale length, require a slightly higher tension to achieve the same vibratory pitch/frequency than equivalent 80/20 Bronze strings. This is due to the density differences between the two metal alloys used. I have noticed this but it is kind of subtle and it obviously doesn't apply to the plain B and E.
In thinking about it from a technical angle, the additional mass of the coating, however small, would result in greater tension to achieve the same vibratory pitch/frequency. Therefore, if the mass of the coating on the Elixir Nanos was greater than the coating on the D'Addarios, theoretically the tension would be higher at concert pitch. In practice however, I would guess that the difference in mass of the coatings is so much smaller than the total mass of the string itself that this would not be noticeable and maybe not even measureable.