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3870x2 or 2*3870 crossfire 16x@16x

Discussion in 'AMD / ATI' started by Hayder_Master, May 20, 2008.

  1. Hayder_Master

    Hayder_Master

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    3870x2 or 2*3870 crossfire 16x@16x
     
  2. JC316

    JC316 Knows what makes you tick

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    I would say that the X-fire 3870's would out perform the 3870x2.
     
  3. Hayder_Master

    Hayder_Master

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    i don't sure but i think the 2*3870 have more memory bandwidth than 3870x2
     
  4. nflesher87

    nflesher87 Staff

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    is price an issue? if not, get the X2, simpler and room for upgrade down the line
     
  5. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    If you're planning for either (be it 2x HD3870 or HD3870 x2), you have to change that motherboard of yours. If I remember correctly, the PCI-E x16 slot is electrically x8 on an NF-M2S.
     
  6. Hayder_Master

    Hayder_Master

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    that's right my dear friend also i have one pci-e i want to upgrade my mobo so first i want mobo sppurt amd sli with pci-e 2.0 and fsb ram 1066 only one asus mobo i find like this but i don't like asus too much so am wait for gigabyte and xfx nothing come so i have tow chose first amd 790 meaning amd,ati or x48 meaning intel,ati i don't want mobo with intel.nvidia cus you the problem between intel and nvidia (sli support)

    i am put this in forums too
     
  7. lemonadesoda

    lemonadesoda

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    1./ 3870x2 is GDDR3
    2./ 2x 3870 is GDDR4

    Set clocks on 2x 3870 to be same as 3870x2 (which is overclocked) and the result is faster than the 3870x2. BUT, 2x 3870 uses more power and requires 2 slots.

    PCIex8 is NOT A PROBLEM. In theory there is less bandwidth. In practice, there is still enough. An AGP 3850 is *not* slower than a PCIex16 3850, and PCIe8 is still better than AGP.

    My preference, even though its a bit slower with GDDR3, is to go for the 3870x2. Simpler set up. More room left in case for airflow.

    BUT, if you didnt buy yet, then DONT. The 4870 is the one to go for now.
     
  8. kylew

    kylew New Member

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    DO NOT BUY! 4870s will be out very soon now, wait, and you shall be rewarded for your patience. :D :roll:
     
  9. trt740

    trt740

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    they are pushed back to august what does he do for two months. The 3870x2 cards can be had on ebay for less than 300.00 and will be plenty powerful for the next year or more.
     
  10. Hayder_Master

    Hayder_Master

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    thanx guys, so i think am wait
     
  11. erocker

    erocker Super Moderator Staff Member

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    The Asus X38/X48 boards are very nice, especially the Maximus and the Rampage Formula's. The bios can be quite complicated, but there are many very good support threads out there that will take you where you need to go! There is always DFI if they are available where you live.:toast:
     
  12. Hayder_Master

    Hayder_Master

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    right we have asus and gigabyte in our markets
     

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