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How does pcie 16x and 4x compare to 8x 8x motherboard

  • Graphics Cards
  • Performance
  • Crossfire
  • Motherboards
  • Graphics
Last response: in Graphics & Displays
August 8, 2010 8:54:23 AM

how much of a impact on performance does the 8x 4x have compared to 8x 8x motherboard?
my cousin is selling one and im just wondering if its worth it for crossfire?

More about : pcie 16x compare motherboard

a b U Graphics card
a b V Motherboard
August 8, 2010 9:06:50 PM

After a non-exhaustive look around, I found mid-way down this page:

that they claim less than a 1% difference for crossfire in X16-X4 vs X8-X8. Cards, chips, drivers are faster now and impose a greater load, so today's impact is likely at least a bit greater. Sorry, but that's the closest I could come - perhaps you can find more by googling and using respected review sites.

If your system is of similar age and speed to that in the article, you won't achieve a noticable difference. Personally, I wouldn't bother doing this unless I could pop my cards in cousin's board and actually see a difference.
a c 236 U Graphics card
a b V Motherboard
August 8, 2010 9:38:03 PM

crossfire what cards? I'm assuming this is PCI-E 1.0 slots rather then 2.0?

August 9, 2010 4:35:56 AM

ok, so after looking around for awhile I found that it does have a performance hit in games with inconsistent fps compared to 8x 8x and 16x 16x pcie lanes

thanks for the replies

here's what I found: