(INT 1) V.A.N.S – Your V.A.T.S. displays a path to your nearest objective.
(INT 2) Medic – Stimpacks and Rad-Away are 40% more effective.
(INT 3) Gun Nut – Access base level gun modifications.
(INT 4) Hacker – Allows you to hack advanced terminals.
(INT 5) Scrapper – Salvage uncommon items when scrapping weapons and armour.
(INT 6) Science – Gain access to Rank 1 high-tech mods
(INT 7) Chemist – Chems last 50% longer.
(INT 8) Robotics Expert – Ability to hack robots, can power off/on or initiate self-destruct.
(INT 9) Nuclear Physicist – Radiation weapons do 50% more damage while Fusion Cores last 25% longer.
(INT 10) Nerd Rage – When health drops below 20% you gain 20% to damage resistance and deal 20% more damage for the duration of the effect.