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hetero-sli? why not?

Discussion in 'NVIDIA' started by Fitseries3, Apr 5, 2009.

  1. Fitseries3

    Fitseries3 Eleet Hardware Junkie

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    why hasnt nvidia allowed SLI with different cards?

    it would be awesome to run a gtx295 + gtx275 in TRI SLI.

    why the hell not?
     
  2. alucasa

    alucasa

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    Well..., why ask us ?
    Ask Nvidia ?
    j/k
     
  3. Baleful

    Baleful New Member

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    It all comes down to money my man. Nvidia doesn't want you to buy a 295 and a 216 to run sli together, they want you to buy two 295's. It's a business.
     
  4. SparkyJJO

    SparkyJJO New Member

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    I would imagine it has something to do with data rates. Hard to make 2+ cards run together when one is quicker than the other.
     
  5. dark2099

    dark2099

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    Should be possible since all the GTX chips are based on the same tech, no? Like the various ATI 48x0 chips, all the same chip, just diff clocks and voltages and RAM.
     
  6. alucasa

    alucasa

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    Well, it does have something to do different clock speed.

    Dual socket systems require identical CPUs of the same clock speed as well.
     
  7. Fitseries3

    Fitseries3 Eleet Hardware Junkie

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    ati does this just fine it seams. why not nvidia?
     
  8. KieranD

    KieranD

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    if you crossfire different cards it downclocks the faster card to the same speeds, yes?

    i dont think it could work thinking from a technical standpoint

    although you can hybrid crossfire and sli and the IGP is much slower so it cold be possible now i think of it
     
  9. zanzabar

    zanzabar Xtreme Refugee

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    no it dosnt do that for xfire it will stagger AFR or split screen bassed on performance, sli could work if the card has the same tmu and shaders/shader cores, and if u mess with the bios or rivatuner u should beable to change the device ID of a 275 to a 295 and it might tri sli. but tri sli dosnt scale as well as quad and has shutter under low fps
     
    Last edited: Apr 5, 2009
  10. LifeOnMars

    LifeOnMars New Member

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    what about homo-sli? Two camp green cards nestled up to each other keeping each other warm, slathered in thermal grease.....:)
     
    CyberDruid says thanks.
  11. ShadowFold

    ShadowFold New Member

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    You're thinking of the EVGA classified :laugh:
    [​IMG]
    That's a gangbang right there :roll: poor 9800:(
     
    CyberDruid says thanks.
  12. cdawall where the hell are my stars

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    do not i have seen people slap an opty single core with an opty dual core they just run at the lowest chips speed
     
  13. LifeOnMars

    LifeOnMars New Member

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  14. DrPepper

    DrPepper The Doctor is in the house

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    It should be able to work with the GTX260's because if you sli a 192 with a 216 the 216 just ignores a few shaders and there you go. I think its possible but nvidia wont because they cant be arsed.
     
  15. DaMulta

    DaMulta My stars went supernova

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    Maybe ATi has a patent on it, or they just aren't as smart....
     
  16. KainXS

    KainXS

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    I'm pretty sure its because while nvidia was pumping out powerful cards aiming to be "the fastest", ati was working on better scalability and efficiency in their cards instead of having "the fastest card"

    So Nvidia's SLI technology is actually behind ATI's Crossfire now.
     
  17. aCid888*

    aCid888* New Member

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    This could well be true; if you take a look at the Crossfire 4890 review by Wiz you'll see how well they scale in Crossfire, 92%+ @ 1920x1200.

    [​IMG]

    Very impressive to say the least. :)
     
  18. Fitseries3

    Fitseries3 Eleet Hardware Junkie

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    why not septo or octo SLI?
     
  19. h3llb3nd4

    h3llb3nd4 New Member

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    Lets kick nvidia in the shin quickly! see if they will understand what we want...
     
  20. newtekie1

    newtekie1 Semi-Retired Folder

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    You know, I've always wonder and wanted this same thing since the 7900GX2.

    I think the main thing is nVidia is too lazy to implement it correctly.
     
    Crunching for Team TPU More than 25k PPD
  21. erocker

    erocker Super Moderator Staff Member

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    Have you tried a 275 and a 295 together? They are somewhat the same.
     
  22. Fitseries3

    Fitseries3 Eleet Hardware Junkie

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    i dont have a 275 to try :(
     
  23. n-ster

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    I guess they didn't do the research for it... Tri-SLIing a gtx 275 with a 295 should be done for sure!
     
  24. Fitseries3

    Fitseries3 Eleet Hardware Junkie

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    someone send me a 275 asap!

    i'll git er done
     
  25. erocker

    erocker Super Moderator Staff Member

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    No! Send me a 275 and a 295 and I'll get it done!!! :p
     

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