head to head
DOOM (2016) asks more than Rocksmith 2014, and the gap is optimization.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.

Execution · Pure Mechanics
A pure physical-execution trainer - playing a real guitar accurately on time.
DOOM (2016) leans Execution (Pure Mechanics); Rocksmith 2014 leans Execution (Pure Mechanics).
Rocksmith 2014 leans a little harder on execution, though the gap is small.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Rocksmith 2014
Real fretting and picking accuracy is literally the whole game
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
Rocksmith 2014
No opponent, only the song
DOOM (2016) leans a little harder on variance, though the gap is small.
DOOM (2016)
Minimal encounter randomness.
Rocksmith 2014
Charts are fully known in advance
DOOM (2016) leans clearly harder on optimization.
DOOM (2016)
Rune and weapon mod picks meaningful.
Rocksmith 2014
Practice scheduling helps but solves nothing for your hands
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.