head to head
Portal 2 asks more than Full Throttle, and the gap is optimization.

Optimization · Pure Optimization
A road-punk adventure whose few action beats wrap an otherwise solvable inventory puzzle core.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Full Throttle leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Full Throttle
Biker brawl sequences require basic timing not found elsewhere
Portal 2
Portal placement requires some precision but timing is lenient.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Full Throttle
Linear story with scripted antagonists and no adaptive opponent
Portal 2
No opponent; puzzles are static.
Full Throttle leans a little harder on variance, though the gap is small.
Full Throttle
Minimal randomness; world state is tightly authored
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans clearly harder on optimization.
Full Throttle
Puzzle solutions are fixed and discoverable through systematic exploration
Portal 2
Solving the puzzle's logic IS the entire 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.