SLI Returns

Discussion in 'Beyond3D News' started by Dave Baumann, Jun 28, 2004.

  1. jimmyjames123

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    LOL!!! That one is classic!

    Personally, I think dual 6800GT's, each being single-slot and $100 cheaper than the 6800U, would be the best combination of performance/price, practicality, and features. However, it is the 6800U and 6800UE owners who tend to be the most "extreme", so to speak ;)

    P.S. mods, please delete the post above this...I accidently forgot to log in and posted it by mistake :oops:
     
  2. AlphaWolf

    AlphaWolf Specious Misanthrope
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    I would like to see the layout of nvidia's board with 2 peg16x slots.
     
  3. bdotobdot2

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    Wouldn't there have to be 2 six pin PCIe vid card power cables also? (for the 6800u's anyway) Or at least a y-splitter!
     
  4. Simon F

    Simon F Tea maker
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    FFS, has that been granted?!
    Claim 1 says:
    That's exactly what Elan/Naomi2 does, and (a) I believe it came out a little bit before this patent and (b) (IIRC) was discussed on these very boards.
     
  5. bloodbob

    bloodbob Trollipop
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    LOL gotta love the US patent office.
     
  6. Simon F

    Simon F Tea maker
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    Actually, this appears to be the EPO and usually they are really strict.
     
  7. Anonymous

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    true performance sysytem

    I still don't know why no one has said this.

    4 Nvidia cards inside Alienware's system.

    Now thats performance for the the masses.

    Donaldson'
     
  8. Mephisto

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    And you believe this "clarification" without thinking about it?

    There is absolutly no reason to limit the technology this way.

    As board manufacturers build exactly the same boards (except board/fan colors/stickers) or sometimes for the highest end even buy prefabbed kits from NVidia (including PCB/memory/GPU) it will work with the reference drivers on any manufacturer combination. It also did back in the 3dfx days, although 3dfx and their PR monkeys claimed otherwise.

    You won't get support though by using different manufacturers.
     
  9. Cyberdigitus

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    Would such a configuration also handle 3 or 4 monitors? i hope the software and bridge between those cards is flexible in such a way. or indeed use one of the cards to render to texture, you could have one card do the graphics and the other as a more general vector processing for physics...
     
  10. Bouncing Zabaglione Bros.

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    Supposed to handle four monitors, two off each card.
     
  11. martrox

    martrox Old Fart
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    Heck...for what it's gona cost, it should make you dinner AND have your children........... :wink:
     
  12. AlBran

    AlBran Ferro-Fibrous
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    I can vouch that those will cook food ;)
     
  13. martrox

    martrox Old Fart
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    And keep you warm on a long, cold winter night........? :wink:
     
  14. Anonymous

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    RE; Cyberdigitus

    A SLI config would handle up to two monitors one monitor per card.

    If you stopped them from working together you would get four monitors.

    Add Alienware and surround gamming (3 displays) 12 cards

    2 per SLI , 2 SLI per alienware hookup....

    As for geomtery rendering, nothing fancy they splitting the scene into two parts. You could try this at home by addeding a front plane to the lower
    half of your camera (Or setting the lower half of a Z buffer to the near clipping plane.

    It will be really interesting to see what happens when stencil shadows are run through this.....


    Donaldson
     
  15. Anonymous

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    Re: true performance sysytem

    "The TV is talking about how last night's nation-wide brownout may be some new Al-Kaida act."

    "Oh, no, that was just us having a lan party."

    ET
     
  16. ben6

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    Um there are at least 3 different model SLI boards with different clockspeeds and different pipelines (one 12 pipeline 6800GT, 16 pipeline 6800, 16 pipeline 6800 Ultra) . Are you suggesting that you could mix a 3dfx Voodoo 2 8 MB and a 12 MB and different clockspeeds? I would think not...

    Not to mention that there are differing manufacturers out there with different clock speeds even on the same variant. For example all of the BFG cards ship at a higher frequency than recommended by NVIDIA.
     
  17. Anonymous

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    TweakTown had a little paragraph about that saying that if you wanted to oc, you'd have to clock both cards to the same frequency. So I'd imagine you'd only have to set the mem and core speed to the same on both cards and it'd work on cards from different manufacturers (as long as they have the same number of pipelines).
     
  18. keno

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    From what I understand they do load balancing, so that if the card doing the top half is mostly drawing sky it is allocated a larger chunk of the screen to make up for it. So you might end up with a 2/3:1/3 split to keep both cards doing equal work.
     
  19. Dave B(TotalVR)

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    Personally I think Nvidia would do well to include an SLI connector on future Nforce chipsets, so when users plug in their faster Nvidia AIB GPU then can get even more power by still using the integrated chip as well.


    Sound idea no?
     
  20. 3dilettante

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    I don't know about linking an integrated graphics chipset to an add-in board. It might be analogous to thinking tying a dwarf to a sprinter is going to make him outpace other sprinters.

    Requiring identical cards is a good way to guarantee they remain in lock-step, and would probably get around a whole lot of headaches in implementation. There is no guarantee that an anemic integrated core will have the facilities to adequately share the load with a high end board without all the additional overhead required to keep a board capable of 200 fps in step with a chip that can barely make 50.
     
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