Smite damage?

[Andrew the Legit Single-Player]

ive read a lot about smiters and builds getting over  1000 dmg average every smite. i cant seem to get it up that high, im wondering if this info is just outdated or what anyway, here is my skill allocation, and my gear, and i average about 624 every smite

You need one of the weapons that adds to Smite damage. Several
unique scepters have this property, but the ultimate weapon for
wealthy Smiters is of course, Grief. This runeword can add as much as
+400 average damage per hit to the base weapon damage BEFORE
multiplying by off-weapon enhanced damage (i.e. Fanaticism and Strength
modifiers). This is how people get those thousands of points in Smite
damage you hear about.

Are you using a Might merc? They can add substantial off-weapon ED as well.

Most of my melee characters wear Fortitude runeword armor, which adds
an astounding +300% off-weapon enhanced damage.

Also, don't forget about %Deadly Strike and Crushing Blow modifiers.
These can be a lot more useful to Zealots and Smiters that just boosting
the numbers on the Lying Character Screen.
Guillauime's Face helm and Gore Riders boots are staples of these builds.