/ Sign-up
Your question

Crossfire GPU PCI x8 with x16

  • Graphics Cards
  • GPUs
  • PCI
  • Crossfire
  • Sapphire
  • Graphics
Last response: in Graphics Cards
January 14, 2013 6:02:02 PM

my sapphire HD6870 is currently sitting in x16, I am planning on getting another of the same card and crossfire.
However the other PCI is x8, will this cause a large decrease in performance? Thanks in advance for your help guys.

More about : crossfire gpu pci x16

January 14, 2013 6:20:04 PM

Long answer?
January 14, 2013 6:22:18 PM

BigMack70 said:
Short answer is nope it won't make a difference - you're fine.

Thank you for the prompt reply. Do you think I will have to get some after market cooling for the cards? Or will the stock be adequate?
Related resources
Can't find your answer ? Ask !
January 14, 2013 7:08:12 PM

I will probably have about an inch an a half of space between the cards. I am getting a new case with good air flow (Large fan at front small at back and a top exhaust) and psu at 750w. So I think im finally set!

Thanks for the help.
January 14, 2013 7:09:26 PM

Best answer selected by numpteyman.
a c 194 U Graphics card
January 14, 2013 7:22:07 PM

6870 crossfire you will get microstuttering and 1gb is not enough to run modern games with high texture detail, you will get low performance. ive been there done that with crossfire 6850's. a month after i bought the second one i sold them both and went back to a better single card. i didnt believe all the other reports of microstuttering etc, and had to try it for myself. luckily i sold the card for the same price i bought it for on ebay so i had no reall loss, except time wasted stuffing around with radeonpro, and crossfire settings.
January 14, 2013 7:25:18 PM

I have one at the moment and I can run planet side 2, battlefield 3 etc with high texture detail? So two will be worse then one?