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Far Cry 2

Oddly enough, the Radeon HD 4890 is no better than its predecessor at 1280x1024, notwithstanding the higher core and memory frequencies. The difference can be observed at the higher resolutions, though. The gap grows from 7% at 1680x1050 to a serious 18% at 2560x1600. It is a noteworthy fact that the bottom speed of the Radeon HD 4890 is higher than that of the Radeon HD 4850 X2 in this game, especially at 1920x1200.

It is also interesting that overclocking ensures a hefty increase in the new card’s bottom speed. It nearly reaches a comfortable level at 2560x1600 whereas the same card has a bottom speed of only 9fps at that resolution without overclocking.

F.E.A.R. 2: Project Origin

Unfortunately, ATI’s new product cannot deliver a playable speed at 2560x1600 even when overclocked, but performs well enough in the lower display modes. It offers an 11 to 14% growth of average performance relative to the Radeon HD 4870 1GB. It is also not much slower than the GeForce GTX 285 at resolutions up to 1680x1050 inclusive and will make a good buy for people who have 22-inch or smaller monitors.

Left 4 Dead

The game runs on the Source engine and has an integrated benchmark, but the latter does not report the bottom speed information.

Thanks to the optimized internal architecture and higher clock rates, the Radeon HD 4890 offers a 10-15% growth of speed, which is enough to compete with the GeForce GTX 285 and even Radeon HD 4850 X2. On the other hand, the Radeon HD 4890 doesn’t offer anything new for a practical gamer because its predecessor could already provide a comfortable speed in Left 4 Dead at 2560x1600.

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

To achieve a playable speed in this game we disabled FSAA and such resource-consuming options as Sun rays, Wet surfaces and Volumetric Smoke. We use the Enhanced full dynamic lighting (DX10) mode for our test and additionally enable the DirectX 10.1 mode for the ATI cards.

The Radeon HD 4890 is only 6-12% ahead of the Radeon HD 4870 1GB but that’s enough to beat the GeForce GTX 285. Our overclocking even makes the card the overall leader, yet it still does not achieve an acceptable bottom speed at 1920x1200. Well, no other graphics solution, not even the Radeon HD 4850 X2, can do that.

 
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