Today, we are looking at ATI's flagship Radeon HD 5870 video card and will be pairing it together with the Radeon HD 5850 video cards to seeing how they work together in mixed CrossFire. We've previously reviewed both of these series in CrossFire before, but never dared to look at them mixed together and running CrossFire.

Quote: "This article proves you can easily pair a Radeon HD 5870 with a Radeon HD 5850 and run them together in mixed CrossFire for improved gaming performance over a single card solution. That in itself is a small victory and a nice feature to have if you have a chance to mix and match cards like this for a performance upgrade down the road. One thing that shocked me was that the CrossFire gaming performance of a Radeon HD 5870 + 5850 was lower than that of a pair of Radeon HD 5850 video cards in CrossFire in all of our testing with the exception of one game. I would assume it is because the higher capacity card (the Radeon HD 5870) gets brought down to the lower one (the Raeon HD 5850) plus some overhead..."



Link: Legit Reviews