Bloody Hell.. 3870 X2

Discussion in 'Videocards - AMD Radeon' started by Paladinchan, Nov 17, 2007.

  1. Jonnyboy

    Jonnyboy Ancient Guru

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    will you need a crossfire edition card or can you just buy 2,3,or 4 hd 3850 cards to use crossfire?
     
  2. MikeMK

    MikeMK Ancient Guru

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    crossfire edition cards have been out since the X1900 days. The X1900GT, and all the 2900's etc only need the bridge, just like SLI, so u dont need a special card and can pair any too together. Makes much more sense!
     
  3. Sheninat0r

    Sheninat0r Active Member

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    Someday, they're going to have to stop making cards longer... or they're going to have to start making bigger cases.

    Seriously though, quad CrossFire X looks like absolute kickass. Now, if only they had some decent high-end cards to do it with.
     
  4. roehunter1

    roehunter1 Member Guru

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    I read somewhere that it actually has a six and an eight pin connecter just like the 2900xt. No way just one connector will power that thing.

    I have a full tower case and I think that it is even too long for it.
     

  5. Renegade8100

    Renegade8100 Ancient Guru

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    excuse me while i clean the drool off my keyboard
     
  6. Matt.Higgins

    Matt.Higgins Active Member

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    Just get a hack-saw to the case, not that hard!
    i no some people will moan
    but if your a case-modder should add a little fun :D

    cant wait to see benchys
     
  7. DLD

    DLD Master Guru

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    Size of a brain as well = come to your senses by looking at the tests of 8800 vs 3870. ATi is slow and inefficient.:puke2:
     
  8. Paladinchan

    Paladinchan Ancient Guru

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    i think ATI did a smart thing..

    what is more:
    Rich PPL that can afford 8800GTx's

    or ppl that only have $200 or so to spend..
     
  9. fearsjohn

    fearsjohn Maha Guru

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    actually it will probably only work with pci-express 2.0 with one 6 pin or one 8 pin.
     
  10. francesthemutes

    francesthemutes New Member

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    That looks a little too long for my tastes.
     

  11. weston

    weston Ancient Guru

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    that's what she said
     
  12. Sparx

    Sparx Maha Guru

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    LOL! Ahahaha, nice one mate.. So off-topic but hey! ;)

    But yeah, looks impressive.. :p

    Gah that reply would work for that too ^^ "That's what she said".. Rofl. :p
     
  13. Lahomer

    Lahomer Master Guru

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    whoa now thats a big motha****a :p anyhow lets wait for some benchie's.
     
  14. UG_PL

    UG_PL Banned

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    Quad HD 3870 X2 ... just wow :banana::puke2: This thing would own Crysis. Probably 120FPS @ any resolution with AAx6 and AFx16 on ultra setting.
     
  15. Jonnyboy

    Jonnyboy Ancient Guru

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    care to show us a link?I would assume that if it requires alot less power then the 2900 series I would think that one six pin connector can power it
     

  16. Dustpuppy

    Dustpuppy Ancient Guru

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    integrated - fffffffuuuuu
    Not so fast

    /* not gonna delete my following post but you should ignore it as it's wrong :p */

    Ceteris Paribus , here comes some math.

    The 3850 was getting 85% of the performance of a GT, and getting 170%* over a single 3850s card with two of them in xFire. That means compared to a 8800GT, at 4 of them would be knocking down 340% *.85 = 289% versus a single 8800GT. The GT scales at 1.87 for sli so 289/187 implies 155%, so four of these cards in xfire will run 55% faster than 2 8800GT's. This is the high end of the prediction, the performance scaling of the cards is likely to deteriorate more with four cards than with two.


    http://www.anandtech.com/video/showdoc.aspx?i=3151&p=10


    Using the same prediction technique 3 8800GT's should get ((1.87/2) * 3 ) = 281%
    289/281 < 1.03 . **

    Assuming you could get 3 way sli, 4 Xfire 3870's should be only slightly faster than 3 8800GT's in raw numbers less than 3%. Like I said Ceteris Paribus, all things equal, though naturally they won't be.



    *170% is the performance of two radeon cards in sli over a single card, * 2 to get 4 cards, *.85 to get performance compared to a 8800GT.

    ** (1.87/2) calculates the performance boost per card, * 3 for 3 cards.
    /my guess is 30-40% boost over a sli gt rig with QUAD 3870 unless a major driver change gives ATI a big boost.

    ETA: all that typing only to finally notice the article I based it on cited 3850's not 3870's
     
    Last edited: Nov 17, 2007
  17. UG_PL

    UG_PL Banned

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    ok....:boozer::rolleyes:

    and what do you mean by "cited 3850's" ? I dont see anything about HD 3850s .They are dual HD3870 or am I reading something wrong?! :3eyes:
     
  18. weston

    weston Ancient Guru

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    the sad thing is it probably still wouldn't be able to play it much over 16x10 with AA. the 3870 gets about 9 fps everything maxed at that resolution with no AA. lets say the 3870 X2 gets good scaling and goes up to 18 fps. Quad crossfire would then get about 2.5-3x that value so about 45-50 but that's without AA. Turn up the AA and it would get 35-40 avg tops. That's only at 16x10 with octo crossfire! Crysis is a beast! but a great looking one at that. a sexy beast like Austin Powers...sorry had to throw that in there
     
  19. Xendance

    Xendance Ancient Guru

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    The card doesn't look that long.
    Pay attention to the mobo and the card in this pic.

    [​IMG]
     
  20. aircool

    aircool Don Aircooleone Staff Member

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    Litterally :D
     

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