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.
HD 4850: Here we see no real change.
HD 4870: Here we see no real change.
HD 4870 X2: Here we see at 1920 x 1200 performance has dropped back, but it's more in line with what it probably should be as the resolution increases.