PCIe 2.0 v PCIe 1.0

Is the there a dramatic difference between PCI 2.0 vs PCIe 1.0 in performance when running GTX 590 in SLI mode?
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  1. With that kind of a card I am pretty sure yes. PCIE1 is half the speed so it is like you are running PCIe2 on 4 lanes instead of 8 or 16. I think running on 8 lanes is probably even pushing it with a GTX590
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