7 Replies Latest reply on Oct 30, 2015 9:18 AM by black_zion

    290x Crossfire Question

    dankofownage

      I am planning to get 2 R9 290xs and run in CF.

      My board has 2 PCI-E 2.0 x16 slots but one 16 lanes and the other has 4.

      How much will the secondary card being in the 4 lane slot hurt me in performance?