head to head
Fallout: New Vegas asks more than Evotinction, and the gap is optimization.

Optimization · Pure Optimization
A tactical action game about a robot uprising against humanity's remnants.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Evotinction leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans a little harder on execution, though the gap is small.
Evotinction
squad control demands light tactical input
Fallout: New Vegas
Shooter inputs with VATS assist
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Evotinction
AI robots follow scripted combat behavior
Fallout: New Vegas
Scripted factions and enemies
Evotinction leans a little harder on variance, though the gap is small.
Evotinction
randomized encounters and mutation events
Fallout: New Vegas
Some loot and crit RNG
Fallout: New Vegas leans clearly harder on optimization.
Evotinction
squad and evolution system optimization
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.