Skill Rate/Fallout: New Vegas

Skill Rate is a derived statistic $$

Gameplay

 * $$\text{Initial level}=(\text{Intelligence}/2)+10$$

In Fallout: New Vegas, the number of innate skill points remains the same at 10, but the Intelligence bonus is now halved. If Intelligence is set to an odd number, the half points will be stored and added to every other level; i.e. an Intelligence of 9 would result in skill point allowances of 14 and 15 every other level.

Tag skills function the same as before. The Educated perk now only adds two points instead of three, meaning a maximum of 17 points per level (after level 4). 30 is the maximum possible level initially, the same as Fallout 3 with Broken Steel installed. Each add-on increases the level cap by five, resulting in a final level cap of 50 with Lonesome Road.

All skill-enhancing perks have been removed or modified in such a way that they no longer increase the base value of a skill. Only Tag! provides a direct increase. Intense Training can increase skill points indirectly, as can implants which are functionally identical, but not to any significant degree. In addition, the number of skill books has been reduced, now averaging four per skill, though they are now worth four points with Comprehension instead of 2 as $$

Without the add-ons there is no combination of perk, SPECIAL, and skill point allocation that will allow for 100 points in every skill. With the add-ons installed, one can max every skill with an Intelligence of 4, Educated, Comprehension, and every skill book.