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

Optimization · Pure Optimization
A sprawling open-world RPG where build and system mastery outweigh its combat.

Optimization · Pure Optimization
CD Projekt's first RPG, a dark fantasy of monster contracts and morally gray choices.
The Elder Scrolls V: Skyrim - Anniversary Edition leans Optimization (Pure Optimization); The Witcher 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.
The Elder Scrolls V: Skyrim - Anniversary Edition
real-time combat but fairly forgiving
The Witcher
Rhythm-click combat needs only loose timing
The Elder Scrolls V: Skyrim - Anniversary Edition leans a little harder on reads, though the gap is small.
The Elder Scrolls V: Skyrim - Anniversary Edition
solo RPG, no adaptive enemies
The Witcher
Enemies follow fixed styles and weaknesses
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Elder Scrolls V: Skyrim - Anniversary Edition
loot rolls and random encounters
The Witcher
Some unknown quest outcomes on first play
The Elder Scrolls V: Skyrim - Anniversary Edition leans a little harder on optimization, though the gap is small.
The Elder Scrolls V: Skyrim - Anniversary Edition
deep build, perk, and gear optimization
The Witcher
Signs, potions, and style matchups form the real 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.