Performance in First-Person 3D Shooters
Call of Duty: Modern Warfare 2
Our asymmetric tandem shows its worth right from the start, performing as fast as the single Radeon HD 5870. The symmetric Radeon HD 5770 subsystem is but slightly faster and does not offer any advantages. Thus, it does not justify the higher financial investment. The tandem built out of two Radeon HD 5750 cards is not so fast, its bottom speed falling below 30fps at 2560x1600. So, the asymmetric configuration looks the most appealing of all in this game.
The junior symmetric and the asymmetric CrossFireX tandems built out of Radeon HD 5700 series cards are roughly equal to each other in terms of average performance and inferior to the Radeon HD 5870. The Radeon HD 5770 pair looks better, although its frame rate plummets at 2560x1600 for some reason. The other CrossFireX configurations also suffer a performance hit at that resolution, though.
Far Cry 2
The Radeon HD 5770+5750 tandem is roughly equal to the Radeon HD 5870 here in terms of average frame rate. The Radeon HD 5770 pair is competitive to the GeForce GTX 295 at resolutions up to 1920x1200 but then Nvidia’s card goes ahead, enjoying a large lead at 2560x1600. The tested solutions all deliver about the same level of playing comfort at the lower resolutions, though.