head to head
Schedule I asks more than Portal 2, and the gap is variance.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
A drug-empire logistics puzzle - recipes, pricing and supply chains to optimise.
Portal 2 leans Optimization (Pure Optimization); Schedule I leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Portal 2
Portal placement requires some precision but timing is lenient.
Schedule I
First-person mixing and dealing chores, low dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
No opponent; puzzles are static.
Schedule I
Police and customers run mappable scripted routines
Schedule I leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Schedule I
Customer demands and busts add light randomness
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Schedule I
Product recipes, pricing and empire logistics are the game
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.