head to head
Super Punch-Out!! asks more than Grand Theft Auto: San Andreas, and the gap is execution.

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

Execution · Practiced Mastery
Memorising scripted boxer patterns and executing split-second counters.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Super Punch-Out!! leans Execution (Practiced Mastery).
Super Punch-Out!! leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Super Punch-Out!!
Frame-tight dodges and counters decide every bout
Super Punch-Out!! leans a little harder on reads, though the gap is small.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Super Punch-Out!!
Opponents are scripted pattern puzzles, not adapting minds
Grand Theft Auto: San Andreas leans a little harder on variance, though the gap is small.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Super Punch-Out!!
Patterns are fixed once learned - nothing random
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
Super Punch-Out!!
Memorising each boxer's tells and optimal counters 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.