head to head
Command & Conquer 4: Tiberian Twilight asks more than Grand Theft Auto: San Andreas, and the gap is reads.

Optimization · Practiced Mastery
Tests class counter knowledge and objective control with lighter economy than classic RTS.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Command & Conquer 4: Tiberian Twilight leans Optimization (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Command & Conquer 4: Tiberian Twilight leans a little harder on execution, though the gap is small.
Command & Conquer 4: Tiberian Twilight
Unit micro and crawler repositioning under pressure
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Command & Conquer 4: Tiberian Twilight leans clearly harder on reads.
Command & Conquer 4: Tiberian Twilight
Class picks and feints against humans reward prediction
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.
Command & Conquer 4: Tiberian Twilight
Little hidden beyond fog of war
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Command & Conquer 4: Tiberian Twilight leans a little harder on optimization, though the gap is small.
Command & Conquer 4: Tiberian Twilight
Class counters, population caps and objective control are studyable
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.