I'm about to upgrade my ancient PC with a new motherboard and CPU.  At this point I'm leaning toward the Intel I7 5280K .  I know most people steer towards the 5930 for the 40 lanes, but do I really need it?  I never plan to use multiple video cards, just my single 290x.  Nor do I plan to install audio or nic cards requiring PCI lanes.  Though I am considering adding one or two pci e based memory cards at some point.  So I might need another 8 lanes, but that still only brings me to 24 which is 4 short of the 28 available.  

Any thought? Are my assumptions correct or am I missing something?

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