head to head
Fallout: New Vegas asks more than Pokemon X, and the gap is execution.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.

Optimization · Pure Optimization
The first fully 3D mainline Pokemon adventure, introducing Mega Evolution and the Fairy type in Kalos.
Fallout: New Vegas leans Optimization (Pure Optimization); Pokemon X leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Pokemon X
Menu-driven combat throughout
Pokemon X leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Pokemon X
Scripted opponents; online battling optional
Pokemon X leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Pokemon X
Wild encounter and catch randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Pokemon X
Mega Evolution timing and team planning dominate
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.