Which Reactive Flawless Interface does more damage?

[Rylas]

Reactive Core Flawless Interface with its 75% chance for a 2.5% res debuff and 25% chance for moderate fire DOT

 

-or-

 

Reactive Radial Flawless Interface with its 75% chance for moderate fire DOT and 25% chance for a 2.5% res debuff

 

If it makes a difference, this would be for a Rad/Bio Brute.