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pcie x8 vs x16

how much of a performance loss will i get from having a 8x slot vs a 16x. If i where to have a Asus Maximus vi hero that could only run 2 770's in sli running at 8x would it be worth the extra to buy a dual 16x board or a 16x + 8x boards
7 answers Last reply Best Answer
More about pcie x16
  1. No. You would need a X79 chipset board, and a i7 hex/oct core which costs ~$450 minimum.
  2. See http://en.wikipedia.org/wiki/PCI_Express


    The x8 and x 16 refer to the number of pins which is proportional to the number of 'lanes'. Each lane can carry a certain data rate depending on whether its a pcie 1.0, 2.0 or 3.0 configuration.

    The graphics cards these days need x16 slots to actually fit into them. pcie 1.0 speeds won't let them run fast enough.
  3. Mac266 said:
    No. You would need a X79 chipset board, and a i7 hex/oct core which costs ~$450 minimum.


    what about pre-ordering a asus maximus vi hero x97 mobo?
  4. Best answer
    No not really any performance loss on X8 X8, here you can see what GTX680 does and the 770 is basically the same card renamed http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html
  5. first up, the new Hero is a Z97 board (not x97 :P) and if its anything like the z87 one go for it!
  6. The new Hero will run dual cards at X8 X8 like most other lga1150 boards! http://www.newegg.com/Product/Product.aspx?Item=N82E16813132125
  7. yes, all z97 boards do, if you want x16 x16 wait for x99 and spend your kids college money :P
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