Crossfire question.

Hello, I want to buy another HD 6850 and I wonder if the second PCIe which is x4 will affect the performance and by how much.

Thanks.
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  1. Depends on the resolution you play at (also does your motherboard support PCI-E 2.0 or 1.0 ?) If it supports PCI-E 2.0,then have a look at this link
    http://www.tomshardware.com/reviews/pci-express-scaling-p67-chipset-gaming-performance,2887-10.html
  2. It is 2.0 but in that article they test a 6950 which needs more bandwidth.
  3. Are you talking about PCI-E 2.1 ? if so,then there is no performance difference between 2.0 and 2.1
    Anyway,adding another 6850 will definitely give you a great boost in performance,but as it's seen in the benchmarks,x16x4 speed doesn't scale as good as dual x8/x16
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