head to head
BorderlandsvsS.T.A.L.K.E.R.: Clear Sky
Borderlands leans Optimization (Practiced Mastery); S.T.A.L.K.E.R.: Clear Sky leans Optimization (Practiced Mastery).
BorderlandsS.T.A.L.K.E.R.: Clear Sky
Axis by axis
Execution5 vs 5
Even - both lean on execution about the same.
Reads0 vs 1
S.T.A.L.K.E.R.: Clear Sky leans harder on reads: Faction-war AI is systemic, not adaptive to you
Variance4 vs 5
S.T.A.L.K.E.R.: Clear Sky leans harder on variance: Dynamic faction war and emission RNG hide outcomes
Optimization6 vs 6
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.

