head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Dimension-hopping spectacle platformer built on the classic arsenal-upgrade loop.

Optimization · Practiced Mastery
Lara raids Siberian tombs in a stealth-action adventure heavy on puzzles.
Ratchet & Clank: Rift Apart leans Optimization (Practiced Mastery); Rise of the Tomb Raider 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.
Ratchet & Clank: Rift Apart
Dodging, rift-tether mobility, and weapon aim.
Rise of the Tomb Raider
Bow aim, stealth timing, and platforming sequences.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ratchet & Clank: Rift Apart
Scripted enemies and setpieces only.
Rise of the Tomb Raider
Guards follow predictable patrol scripts.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ratchet & Clank: Rift Apart
Unknown encounters on first run.
Rise of the Tomb Raider
Tomb unknowns dissolve after one visit.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Ratchet & Clank: Rift Apart
Weapon leveling and bolt economy reward planned play.
Rise of the Tomb Raider
Tomb puzzles, crafting, and collectible routing are solvable.
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.