head to head
Silent Hill: Book of Memories asks more than Grand Theft Auto: San Andreas, and the gap is variance.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.

Optimization · Practiced Mastery
A dungeon-crawler spin-off testing build management across randomised otherworlds.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Silent Hill: Book of Memories leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Silent Hill: Book of Memories
Twin-stick melee and dodge timing matter moderately
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Silent Hill: Book of Memories
Monsters follow simple scripted aggression
Silent Hill: Book of Memories leans clearly harder on variance.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Silent Hill: Book of Memories
Procedural dungeon layouts and loot rolls vary each run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Silent Hill: Book of Memories
Karma builds, weapon upkeep and puzzle rooms reward system mastery
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.