S.T.A.L.K.E.R.: Clear Sky is a prequel to Shadows of Chernobyl using an updated X-Ray Engine, the same engine that powered the first game.  The updated engine offers some new features; God rays, volumetric lighting, depth of field blurring, and screen space ambient occlusion (SSAO) lighting.  It also offers two features only available under DX10, wet surfaces and volumetric smoke.  [H]ard|OCP fired it up and tested it against the GTX 280 and 260 as well as the HD4870 and HD4870 X2.  See what kind of horsepower you need to be able to turn up these new options in the full review.

“S.T.A.L.K.E.R.: Clear Sky has arrived to give us our apocalyptic fix, and just maybe grind our video cards into dust in the process. We’ll find out how AMD’s and NVIDIA’s latest high-end GPUs handle this graphically demanding new game!”

Here is some more Tech News from around the web: