head to head
Fallout: New Vegas asks more than SD Gundam G Generation Cross Rays, and the gap is execution.

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

Optimization · Pure Optimization
Optimizing mecha squad builds and development plans through solvable tactical stages.
Fallout: New Vegas leans Optimization (Pure Optimization); SD Gundam G Generation Cross Rays leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
SD Gundam G Generation Cross Rays
Turn-based menus - hands are irrelevant
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
SD Gundam G Generation Cross Rays
Enemy AI follows fixed priorities, never models you
SD Gundam G Generation Cross Rays leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
SD Gundam G Generation Cross Rays
Hit rolls and crits wobble individual turns slightly
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
SD Gundam G Generation Cross Rays
Squad building, unit development and stage routing is the game
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.