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Crossfire vs SLI Performance Comparison Review

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Mirror's Edge was released to the PC community on January 13, 2009. Mirror's Edge is designed using Unreal Engine 3. One of the highlights from EA and Dice was the fact that this is the first game to feature GPU accelerated PhysX effects throughout the game. As you may or may not know, PhsyX is becoming a huge part of the gaming experience. The additional realism that comes from using this technology on hardware designed to maximize the potential of PhysX capabilities makes playing the gaming that much more intense. From glass that stays part of the environment to the cloth that tears and moves realistically to the physically simulated smoke, this First Person Runner, as it is called, has plenty of hype regarding the stunning visual effects.














Higher Scores = Better Performance


While enabling PhysX may seem unfair, this is about what combination of GPU cards perform best with the eye candy on. In Mirror's Edge, this results in the CPU doing the PhysX work with the ATI cards, allowing the Nvidia cards to post higher FPS averages, as a result of the GPU doing the PhysX calculations. The ATI cards all ran in the low 20 FPS range, with the exception of the HD 4850 CrossFire combo. The Green team's performance was significantly higher. I could have disabled PhysX, but then the effects are not as evident, and the systems do not struggle.

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