head to head
vs
Fallout 3vsUndead Horde
Fallout 3 leans Optimization (Pure Optimization); Undead Horde leans Optimization (Pure Optimization).
Fallout 3Undead Horde
Axis by axis
Execution3 vs 3
Even - both lean on execution about the same.
Reads1 vs 1
Even - both lean on reads about the same.
Variance2 vs 3
Undead Horde leans harder on variance: Loot drops and spawns add some randomness
Optimization7 vs 7
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.