head to head
NBA 08 asks more than Grand Theft Auto V, and the gap is execution.

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

Execution · Practiced Mastery
A basketball simulation offering realistic team management and on-court play.
Grand Theft Auto V leans Execution (Practiced Mastery); NBA 08 leans Execution (Practiced Mastery).
NBA 08 leans clearly harder on execution.
Grand Theft Auto V
Driving and shooting demand decent inputs.
NBA 08
shooting, dribbling, and defensive timing skill
NBA 08 leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
NBA 08
human opponents require play prediction
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.
NBA 08
shot variance and minor randomness
NBA 08 leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
NBA 08
team management and playbook strategy
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.