S.T.A.L.K.E.R. - Clear Sky
Version and / or Patch Used: 1.5.07
Timedemo or Level Used: Custom Timedemo
Developer Homepage: http://www.gsc-game.com/
Product Homepage: http://cs.stalker-game.com/en/
S.T.A.L.K.E.R.: Clear Sky, is the stand-alone prequel for S.T.A.L.K.E.R.: Shadow of Chernobyl, a first-person shooter computer game by Ukrainian developer GSC Game World. The game consists of a roughly 50/50 mix of new areas and old, remodeled areas from the previous game. The X-ray graphics engine has been updated to version 1.5 and includes DirectX 10 support (later patch 1.5.06 included DirectX 10.1). Additionally, the AI received an overhaul to accommodate the new faction wars feature.
We see across the board performance for Clear Sky is quite poor. We can see it does perform significantly better than the GTS 250, though, but at the higher resolutions it struggles compared to the HD 4870.