Strength, Dexterity, and Intelligence are the 3 primary attributes. The most important use of Attributes is to meet requirements to use Equipment and Gems.
Each Attribute provides a different inherent bonus.
Strength
Strength is an Attribute required to equip most equipment that grants Armour, as well as various melee-aligned Weapons and Skills.
Strength provides an inherent bonus of +2 to maximum Life per 1 Strength.
Strength does not grant damage to Skills or any other benefits except where specifically stated.
Dexterity
Dexterity is an Attribute required to use most equipment that grants Evasion Rating, as well as various range-aligned Weapons and Skills.
Dexterity provides an inherent bonus of +8 to Accuracy Rating per 1 Dexterity.
Dexterity does not grant damage to Skills or any other benefits except where specifically stated.
Intelligence
Intelligence is an Attribute required to use most equipment that grants Energy Shield, as well as various spell-aligned Weapons and Skills.
Intelligence provides an inherent bonus of +2 to maximum Mana per 1 Intelligence
Intelligence does not grant damage to Skills or any other benefits except where specifically stated.