Benchmark Results: S.T.A.L.K.E.R.: Clear Sky
Each step of the way, a single Radeon HD 5850 outperforms the GeForce GTX 285. The gap widens as you compare a pair of 5850s to Nvidia’s GeFore GTX 295. Even more impressive is the fact that two Radeon HD 5850s are faster than two GeForce GTX 285s in SLI! The tough decision is really whether the performance gain stepping from Radeon HD 4890 to 5850 ($190 to $260) is worth the step up.
Again we see a single Radeon HD 5850 best Nvidia’s single-chip flagship, but it’s hardly a victory when you consider performance with one card is insufficient at any of these resolutions once you turn on anti-aliasing.
Truly, it takes a pair of cards in CrossFire or SLI to make S.T.A.L.K.E.R. viable with AA enabled, and the two Radeon HD 5850s facilitate a reasonable experience at 1680x1050, and maybe even 1920x1200. Meanwhile, the two GeForce GTX 285s peter out a little faster.