head to head
UEFA Champions League 2006–2007 asks more than Grand Theft Auto: San Andreas, and the gap is reads.

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

Execution · Practiced Mastery
Stick execution and opponent prediction inside licensed tournament football.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); UEFA Champions League 2006–2007 leans Execution (Practiced Mastery).
UEFA Champions League 2006–2007 leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
UEFA Champions League 2006–2007
Pass timing and shot placement decide most goals
UEFA Champions League 2006–2007 leans clearly harder on reads.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
UEFA Champions League 2006–2007
Human opponents bait tackles and disguise attacks
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
UEFA Champions League 2006–2007
Deflections and AI bounces add match noise
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
UEFA Champions League 2006–2007
Squad selection and tactical setup are solvable preparation
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.