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

Execution · Practiced Mastery
Tests racing-line discipline and upgrade economy management on fixed real-world circuits.

Execution · Practiced Mastery
Plannable stealth routing punctuated by precise ballistic marksmanship.
Real Racing 3 leans Execution (Practiced Mastery); Sniper Elite III leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Real Racing 3
Braking points and racing lines are pure motor skill
Sniper Elite III
Ballistic long shots demand steady, compensated aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Real Racing 3
Time-shifted opponents are recordings, not adapting minds
Sniper Elite III
Enemy AI follows mappable alert and search routines
Sniper Elite III leans a little harder on variance, though the gap is small.
Real Racing 3
Tracks are licensed and fully fixed
Sniper Elite III
Patrol details and wind vary slightly per attempt
Sniper Elite III leans a little harder on optimization, though the gap is small.
Real Racing 3
Car upgrades and the monetised economy demand managing
Sniper Elite III
Open maps reward planned routes, sound masking and relocation
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.