head to head
Fallout: New Vegas asks more than Pokemon FireRed Version, 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 Game Boy Advance remake of the original Kanto journey with modern mechanics and the Sevii Islands.
Fallout: New Vegas leans Optimization (Pure Optimization); Pokemon FireRed Version leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Pokemon FireRed Version
Turn-based menus only
Pokemon FireRed Version leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Pokemon FireRed Version
AI trainers follow fixed logic; PvP optional
Pokemon FireRed Version leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Pokemon FireRed Version
Wild encounters and catch rolls bring luck
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 FireRed Version
Team composition and matchup knowledge decide everything
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.