- Sep 7, 2015
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I'm planning to get an R9 390, and from what I've read thus far is that putting PCIe 3.0 cards into 2.0 slots shouldn't hurt performance, but I was wondering if the same would apply to a 2-way CrossfireX setup. If I had two R9 390s in Crossfire would they lose performance from being in 2.0 x8?
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