Fire mage greatest strength lies in its high burst, high crit spells, with instant pyroblast procs the amount of damage done is on top of the charts with good RNG.

Stats for Fire Mage Wotlk
Stat priority

14% hit cap* > Spell Power > Crit > Haste (1350) > Intellect > Spirit

Fire Mage Stats Overview

*Hit Cap

For a caster the hit cap is 17% plus, with 3% from [Precision] and 3% from other classes debuffs, 11% is the hit rating necessary to hit with spells, however, if there is no Shadow priest or Balance Druid present on the raid, the amount needed is still 14%.

Spell Power

Spell power is the best stat for a fire mage after hit, the spell power will increase the damage output of the spells, this will be even more beneficial as crit and haste increases.

Critical Strike

Fire mage relies on its critical strikes to deal damage, without critical strikes, there are no instant pyroblasts from [Hot Streak] that require two consecutive crits, no big numbers, and the DPS falls to the bottom off the charts.

Haste

Haste reduces the global cooldown by a small amount and increases the speed of the casts, after 1350 the cast time will be below the Global Cooldown, and it won’t be as beneficial.

Intellect

Intellect increases the mana pool and the critical strike chance, however, most of this stat will come from the gear itself.

Spirit

Spirit increases the critical chance by a small amount via Molten Armor, still not optimal but better than haste after 1350.

Stats Breakdown without increasing effects

33 hit rating ≈ 1% to hit

33 expertise rating ≈ 1 expertise

33 haste rating ≈ 1% haste

45 critical chance ≈ 1% critical

1 stamina ≈ 10 Health

1 intellect ≈ 15 mana

1 agility ≈ 1 attack power

1 strength ≈ 2 attack power

1 critical chance ≈ 84 agility

14 Armor Penetration ≈ 1% Armor ignore