head to head
Grand Theft Auto V asks more than Marvel Spider-Man Unlimited, and the gap is reads.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Execution · Practiced Mastery
An endless runner testing reaction timing across Spider-Man multiverse stages.
Grand Theft Auto V leans Execution (Practiced Mastery); Marvel Spider-Man Unlimited leans Execution (Practiced Mastery).
Marvel Spider-Man Unlimited leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Marvel Spider-Man Unlimited
Reaction timing on swiping and dodging carries runs
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Marvel Spider-Man Unlimited
Endless runner, no opponent to model
Marvel Spider-Man Unlimited leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Marvel Spider-Man Unlimited
Randomized obstacle spawns add some chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Heists, money loops, builds learnable.
Marvel Spider-Man Unlimited
Character collection and upgrades improve scores
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.