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AMD Radeon HD 5870 Triple CrossFireX Performance Testing
Posted by newsbot on October 17th 2009

Getting past the pure joy of seeing these games run this fast, weneed to decide how valuable all of this scaling is to gamers in terms ofcost, etc. In all of my testing (with one exception) the benefits ofmoving from single Radeon HD 5870 to a pair of cards in CrossFireoutweighed the move from two cards to three in terms of price/performanceresults. In other words, the value of the second card was higher than thethird in terms of increasing the performance of the gaming system as awhole. Take HAWX as an example:at 2560x1600 the 1->2 card scaling wasover 70% while the 2->3 card scaling was about 53%. While that is still anice bump in performance (in many cases seeing 50% scaling on any multi-GPUconfiguration would be good news) obviously the third card follows the lawsof diminishing returns.

View article at pcper.com

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