head to head
Tom Clancy's Ghost Recon Wildlands 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
An open-world co-op shooter about scouting cartel bases and picking the cleanest approach.
Grand Theft Auto V leans Execution (Practiced Mastery); Tom Clancy's Ghost Recon Wildlands 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.
Tom Clancy's Ghost Recon Wildlands
Headshots, drone marking, and sync shots reward steady aim
Grand Theft Auto V leans a little harder on reads, though the gap is small.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Tom Clancy's Ghost Recon Wildlands
Enemy AI is scripted patrol logic, not adaptive
Tom Clancy's Ghost Recon Wildlands leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Tom Clancy's Ghost Recon Wildlands
Patrol spawns and reinforcements add mild unpredictability
Tom Clancy's Ghost Recon Wildlands leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
Tom Clancy's Ghost Recon Wildlands
Outpost approach planning and skill unlocks carry progression
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.