head to head
Diablo IV asks more than L.A. Noire, and the gap is optimization.

Optimization · Systems & Chaos
An ARPG loot grind about chasing affix rolls to feed a damage-stack build.

Optimization · Systems & Chaos
1940s detective procedural built around crime scenes and reading scripted interrogation tells.
Diablo IV leans Optimization (Systems & Chaos); L.A. Noire leans Optimization (Systems & Chaos).
Diablo IV leans a little harder on execution, though the gap is small.
Diablo IV
Clicking and dodging are light; gear carries you.
L.A. Noire
Light shooting and driving, very forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo IV
Enemies and bosses are scripted; no adaptive opponent.
L.A. Noire
Suspects follow fixed scripts, never adapt
Diablo IV leans clearly harder on variance.
Diablo IV
Loot rolls, affixes, and uniques drive every session.
L.A. Noire
Interrogation tells and clues hidden until discovered
Diablo IV leans clearly harder on optimization.
Diablo IV
Paragon, aspects, and damage buckets are solvable theorycraft.
L.A. Noire
Evidence chains and question choices have fixed correct answers
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.