head to head
Neither is simply harder - they are hard in different places. Grand Theft Auto V demands more reads; SuperHot demands more optimization.

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

Optimization · Practiced Mastery
FPS scenarios converted into solvable sequencing puzzles by stopped time.
Grand Theft Auto V leans Execution (Practiced Mastery); SuperHot 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.
SuperHot
Time-stops-when-you-stop removes most twitch pressure
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
SuperHot
Red guys follow spawn scripts, not minds
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.
SuperHot
Spawn order is unknown on a first attempt only
SuperHot leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
SuperHot
Each level is a solvable movement-and-kill-order puzzle
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.