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.

Execution · Pure Mechanics
The N64 entry whose boost-or-survive health gamble layers routing decisions onto raw speed control.

Execution · Pure Mechanics
High-speed anti-gravity handling over memorised racing lines with light weapon chaos.
F-Zero X leans Execution (Pure Mechanics); Wipeout 2048 leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero X
Sixty-frame control of thirty machines at top speed
Wipeout 2048
Pixel-perfect anti-grav handling at speed is the core test
Wipeout 2048 leans a little harder on reads, though the gap is small.
F-Zero X
Rival AI is non-adaptive
Wipeout 2048
Online racers add light weapon-timing prediction
Wipeout 2048 leans a little harder on variance, though the gap is small.
F-Zero X
X Cup random tracks are a minor mode
Wipeout 2048
Weapon pad pickups inject some racing randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero X
Boost-health tradeoffs and shortcuts reward routing
Wipeout 2048
Track lines, barrel-roll spots and ship choice are learnable
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.