head to head
Crysis 3 asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Execution · Practiced Mastery
A nanosuit shooter blending bow stealth and heavy firepower across an overgrown New York dome.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Crysis 3 leans Execution (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Crysis 3 leans clearly harder on execution.
Crysis 3
Bow shots, gunplay, and suit movement set the ceiling
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Crysis 3 leans a little harder on reads, though the gap is small.
Crysis 3
Enemy AI is scripted, not adaptive to your habits
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Crysis 3
Encounters are largely fixed once learned
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Crysis 3
Energy budgeting and route choice through sandbox arenas
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
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.