Intelligence is one of the S.P.E.C.I.A.L. attributes in Fallout New Vegas (FNV). Read on to see how to increase and decrease Intelligence using console command, what it does, how to increase Intelligence, all Intelligence levels and their effects, as well as all Intelligence-based skills and perks.

What Does Intelligence Do?

What Does Intelligence Do?
Affects the Medicine, Repair, and Science Skills Gives More Skill Points to Spend Changes Dialogue Prompts

Affects the Medicine, Repair, and Science Skills

Intelligence dabbles in the realm of humanity's progress, so you will have more skill points for medicine, repair, and science as you increase your Intelligence. A great mind is an exceptional boon in the Wasteland!

Gives More Skill Points to Spend

Since you are more gifted than others, you learn skills much faster. With each point in Intelligence, you will gain a 0.5 increase to the available skill points you may spend. When it lands on a decimal numeral, it will round up. For example, 10.5 becomes 11!

Changes Dialogue Prompts

Depending on where your Intelligence ends on the side of the spectrum, your speech and dialect will ultimately change. If you have high Intelligence, sometimes Wastelanders will not understand you. On the lesser hand of the spectrum, your ability to speak will revert akin to a Neanderthal.

How to Increase Intelligence

How to Increase Intelligence
Buy Implants Gain Perks

Buy Implants to Permanently Increase Intelligence

You can permanently increase your Intelligence by buying the Logic Co-Processor implants from Dr. Usanagi at the New Vegas Medical Center.

It costs around 3,000 - 4,000 caps, so make sure you have enough before you employ her help.

Money Farming Guide
How to Get Caps Fast

Gain Perks to Temporarily Increase Intelligence

Aside from the one-time permanent increase in Intelligence that the Intense Training perk can give, there are other perks that you can get to temporarily increase your Intelligence.

Best Perks and List of Perks

Intelligence Console Command

Increase Intelligence Command

You can use the command above to permanently increase your Intelligence in the game.

Simply hit the tilde (~) button on your keyboard to open the console. Then, type the command above and the value you want to add to your Intelligence.

Decrease Intelligence Command

Likewise, you can decrease your Intelligence using the same command. Just make sure that the value you add at the end is negative.

Intelligence Levels

Levels and Skill Modifiers

Intelligence-Based Skills and Perks

All Intelligence-Based Perks

All Intelligence-Based Skills

Skill	Benefits
Medicine	Recovery from Stimpaks and Radaway
Repair	Effectiveness of repairing equipment + Ammunition Recipes
Science	Hack difficult terminals
Speech	Influence NPCs through dialogue

Best Starting Skills and List of Skills

Fallout New Vegas Related Guides

Best Starting SPECIAL Stats and
SPECIAL Explained

All SPECIAL Attributes

All SPECIAL Attributes
Strength	Perception	Endurance
Charisma	Intelligence	Agility
Luck	-	-