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Call of Duty 4 has to be one of our favourite games of last year. It brought the Call of Duty brand bang up to date and proved that first person shooters didn't need to have the best graphics, or the longest game time. It was just eight hours of pure adrenaline rush that constantly kept you on edge.
We test using the 32-bit version of the game patched to version 1.4. FRAPS is used to record frame rates while we manually walk through a short section of the second level of the game. We find a frame rate of 30fps is quite sufficient because, although the atmosphere is intense, the gameplay is less so - it doesn't hang on quick reactions and high-speed movement.
All in-game settings are set to their maximum and we test with 0xAA and 4xAF. Transparency anti-aliasing is also manually turned on through the driver, though this is obviously only enabled when normal AA is being used in-game.
That's more like it - the HD 4870 X2 takes and holds the lead throughout these tests. Again, the performance scaling isn't amazing with the HD 4870 X2 only peaking at about 30 per cent faster than a single HD 4870. We'd struggle to recommend this card based on this game alone.