Looking at our earlier reviews of the Radeon HD5770, we already know that two of them in CrossFireX soundly beat a single NVIDIA GTX285. So, this article is not about comparing the 5770 to other cards; we've already done that. What we're interested in is how well CrossFireX works once you get past the initial surge of dual cards. Is adding a third card a waste of time, or is it just as effective as adding the second card?