head to head
Path of Exile 2 asks more than Diablo III, and the gap is execution.

Optimization · Pure Optimization
A pure loot-and-build treadmill where set-bonus optimisation and Rift pushing define performance.

Optimization · Pure Optimization
A demanding action RPG where deliberate execution and deep build optimisation meet layered crafting variance.
Diablo III leans Optimization (Pure Optimization); Path of Exile 2 leans Optimization (Pure Optimization).
Path of Exile 2 leans clearly harder on execution.
Diablo III
Greater Rift pushing has minor mechanical demand in builds
Path of Exile 2
Slower, more deliberate combat raises the mechanical precision demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo III
No meaningful adaptive opponent; co-op is cooperative
Path of Exile 2
PvE only; bosses are scripted, not adaptive
Path of Exile 2 leans a little harder on variance, though the gap is small.
Diablo III
Primal Ancient drops and set dungeon RNG drive the grind
Path of Exile 2
Drop systems and crafting RNG remain central to the experience
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo III
Set bonuses and paragon levelling are almost entirely solvable
Path of Exile 2
Build theory and passive tree navigation reward deep system knowledge
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.