head to head
The Ultimate Doom 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
A classic frenetic shooter that rewards fast reflexes and mastering enemy patterns.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); The Ultimate Doom leans Execution (Practiced Mastery).
The Ultimate Doom leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
The Ultimate Doom
twitch aim and movement drive combat
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
The Ultimate Doom
fixed demon patterns, no adaptation
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
The Ultimate Doom
minor spawn and drop randomness
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
The Ultimate Doom
weapon routing and glory-kill loops solvable
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.