We tested Battlefield 3 by playing through the start of the Kaffarov mission, right after the player lands. Our 90-second runs involved walking through the woods and getting into a firefight with a group of hostiles, who fired and lobbed grenades at us.
To keep things playable even on the slowest cards, we used the game's medium detail preset. We had no qualms about keeping the resolution at 1080p, though. AMD claims even the Radeon HD 7750 can maintain playable frame rates in the latest games at that resolution.
Most of the plots are nestled around the 20-ms frame time threshold, just like they were in Arkham City. This time, however, we recorded substantial quantities of latency spikes on all three Nvidia GPUs. The spikes tended to be quickly followed by short dips well below the average.
The 99th percentile and 50-ms results put the Nvidia cards at a disadvantage, as expected, although the GeForce GTX 460 1GB doesn't do too badly overall. Still, AMD's Radeon HD 7770 and 6850 come out on top once again—which really means the 6850 comes out on top, because it's cheaper and a better performer than the 7770.
Yes, XFX's Radeon HD 7770 Black Edition technically trounces the 6850, and that's a commendable feat for a card with half the memory bandwidth of its rival. The 7770 Black also happens to cost $179, though, which makes it more expensive than not just the 6850, but quite a few Radeon HD 6870 variants, as well.
As for the Radeon HD 7750, it falls behind our superclocked 5770 by a substantial margin. A stock-clocked Radeon HD 5770 would probably be quicker than the 7750, too—and cheaper.
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