head to head
Warcraft: Orcs & Humans 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
The original 1994 RTS pitting orc and human bases against each other in Azeroth.
Grand Theft Auto V leans Execution (Practiced Mastery); Warcraft: Orcs & Humans leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Warcraft: Orcs & Humans
Clunky unit micro and click speed still matter
Warcraft: Orcs & Humans leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Warcraft: Orcs & Humans
Human multiplayer adds genuine build mind games
Warcraft: Orcs & Humans leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Warcraft: Orcs & Humans
Fog of war hides enemy composition
Warcraft: Orcs & Humans leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
Warcraft: Orcs & Humans
Build orders and economy timing dominate
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.