head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
An endless-runner shooter testing steering and aim against zombie crowds.

Execution · Practiced Mastery
Arcade driving gated by a randomised upgrade-card progression economy.
Into the Dead 2 leans Execution (Practiced Mastery); Need for Speed: Payback leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Into the Dead 2
Steering and aiming while auto-running drives survival
Need for Speed: Payback
Arcade handling and chase setpieces need decent hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Into the Dead 2
Zombies shamble on scripts, no prediction
Need for Speed: Payback
Cops and rivals run scripted pursuit logic
Into the Dead 2 leans a little harder on variance, though the gap is small.
Into the Dead 2
Spawn placement and pickup drops vary each run
Need for Speed: Payback
Speed-card upgrade rolls gate progression randomly
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Into the Dead 2
Weapon loadout and upgrade choices reward planning
Need for Speed: Payback
Grinding efficient builds and routes is the systems layer
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.