This article is all about answering one question: how well does the Radeon HD 5770 scale in CrossFireX performance tests. Benchmark Reviews has already investigated and published two reviews for video cards based on the HD5770 "Juniper" chip; an engineering sample from ATI and a production card from XFX. They both acquitted themselves quite well, and we included some CrossFireX test results in the XFX review, using two cards strapped together on an Intel P45 platform. This time we take a look at how 1, 2, and 3 cards work together on our new Windows 7 test suite, with an AMD 790FX motherboard.