Unreal Tournament 3

The results in Unreal Tournament 3 turned out pretty interesting. We don’t see anything new in the test modes without any graphics quality enhancements. However, when we enable FSAA and AF in resolutions over 1280x1024 the amount of onboard video memory begins to have its effect on performance. The reference point here is Radeon HD 4870 512 MB. At first it falls just a little bit behind Radeon HD 4890 1024 MB, but as the workload increases and the system demands more from the video memory the difference in performance of these two graphics accelerators more than doubles. No doubt that the performance of all other testing participants stumbled upon the insufficient amount of video memory.

S.T.A.L.K.E.R.: Clear Sky

We can point out two things about the results in S.T.A.L.K.E.R.: Clear Sky: extremely low performance demonstrated by Radeon HD 4650 (even compared with the closest runner - Radeon HD 4670) and excellent results demonstrated by the dual-GPU Radeon HD 4870 X2, which proved almost twice as fast a single-processor Radeon HD 4870. All other solutions lined up according to their increasing price and performance.

Crysis

The results obtained in Crysis confirm the general tendency.