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Call of Juarez

Despite all the architectural improvements the ATI Radeon HD 4850 is unable to catch up with the Radeon HD 3870 X2. The Radeon HD 4870 overtakes the latter only at 1600x1200 thanks to super-fast GDDR5 memory. It’s hard to explain these results. The new cards from the Radeon HD 4800 series are only inferior to the Radeon HD 3870 X2 in terms of raster back-ends, surpassing it in everything else.

However, the results are in favor of ATI’s new strategy which implies offering multiprocessor solutions for the top-end sector. Judging by the results of the Radeon HD 3870 X2, we can suppose that the Radeon HD 4870 X2 is going to ensure comfortable performance in Call of Juarez at resolutions above 1280x1024.

Call of Duty 4: Modern Warfare

That’s a triumph of the RV770 chip: the Radeon HD 4850 begins with outperforming the GeForce 9800 GTX by 5% at 1280x1024 and then leaves it as far as 23-27% behind! The Radeon HD 4850 can maintain an average frame rate of nearly 60fps at 1920x1200, which is the optimal speed for first-person shooters. It’s like David beating Goliath! The Radeon HD 4870 is even more impressive: 50% ahead of the GeForce 9800 GTX at 1600x1200 and over 50% ahead at 1920x1200!

 
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