head to head
NCAA College Football 2K3 asks more than Grand Theft Auto V, and the gap is optimization.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Optimization · Practiced Mastery
A college football sim about playbooks and rosters.
Grand Theft Auto V leans Execution (Practiced Mastery); NCAA College Football 2K3 leans Optimization (Practiced Mastery).
NCAA College Football 2K3 leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
NCAA College Football 2K3
snap timing and throwing precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
NCAA College Football 2K3
scripted CPU defense, not adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Some mission and lobby randomness.
NCAA College Football 2K3
fumbles and bounce randomness
NCAA College Football 2K3 leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
NCAA College Football 2K3
playbook and roster management
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.