Odd Results with 8800GTS 320MB SLI. HELP!!

Discussion in 'Videocards - NVIDIA GeForce' started by MTL, Mar 18, 2007.

  1. MTL

    MTL Maha Guru

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    I just installed a pair of 8800GTS 320MB cards into the system you see in my profile and I am getting some odd results in 3DMark06.

    With a SINGLE card I get: 8652 (SM2 4032, SM3 3984)

    With SLI enabled I get: 9498 (SM2 4097, SM3 5041)

    Anyone else see something wrong with this??

    Am I doing something wrong or are there setting I should check??
     
  2. Reality|Bites

    Reality|Bites Ancient Guru

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    Your CPU limited maybe?
     
  3. MTL

    MTL Maha Guru

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    That's what I was thinking but it wouldn't have that much of an effect on the Shader Mark benchmarks would it??

    I mean a 65 point increase in the SM2.0 benchmark is just ridiculous.
     
  4. Anarion

    Anarion Ancient Guru

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    It is your CPU.
     

  5. morbias

    morbias Don TazeMeBro Staff Member

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    I'm guessing that it's a combination of cpu limitation and video memory limitation, but I am quite probably wrong. It could also be the drivers don't support sli too well.
     
  6. John Dolan

    John Dolan Ancient Guru

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    To get the full potential of sli 8800 you need a e6800.I think you would of been better off buying a single 8800gts 640mb than sli 320mb cards because even with sli you still only have 320mb of ram and that's going to hurt some with new games.
     
  7. FRAGEYE

    FRAGEYE Ancient Guru

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    Yes cpu limitation.:)
     
  8. MTL

    MTL Maha Guru

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    Basically, these two were donated so I could finish a PSU roundup for another forum.

    Will upgrading the processor have a benefit on the Shader Mark scores? I don't know about that.....
     
  9. John Dolan

    John Dolan Ancient Guru

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  10. Simple Man

    Simple Man Banned

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    absolutely it will, you are cpu bound with your x2 at only 2.5ghz. your scores will go up by leaps and bounds in all categories with a faster cpu,
     

  11. MTL

    MTL Maha Guru

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    I've had my CPU to 2.9Ghz so we will see how much of a performance boost that gives me. It took alot of tweaking but it will be interesting to see what happens.

    Thanks alot guys. As usual, I am grateful.
     
  12. Copey

    Copey Ancient Guru

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    there is huge bottleneck a C2D would increase those scores massivly but its only really worth it if your bothered about benchmarks and not games ,send the cards my way and ill show ya what they can really do :p
     
  13. Woodmasterfox

    Woodmasterfox Ancient Guru

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    That is most deffinatly a cpu bottleneck. The poor X2's have no chance of giving dual 8800's enough information fast enough.
     
  14. John Dolan

    John Dolan Ancient Guru

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    Doesnt matter how much you overclock your amd you will not get rid of the CPU bottleneck to two 8800 in sli.Id guess youd have to reach over 4 gig which is not possible.Best to forget 3dmark and max out all your game gfx options and rake up the af and aa.To get top score in 3d06 you will need a Intel quad 6700 and overclock that to 3.5 to get the big scores with your sli.Be careful 2.9 is a very big overclock to a amd x2 3800 the highest my 4600 will do is 2.7.
     
    Last edited: Mar 18, 2007
  15. macdaddy

    macdaddy Ancient Guru

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  16. Simple Man

    Simple Man Banned

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    lol, you do realize that your e6600 even at it's stock 2.4ghz is about the equivalent of him running his 3800+ x2 at 3ghz right? your cpu is a lot faster than his, and your results will not be comparable as far as a cpu bottleneck is concerned.
     
  17. John Dolan

    John Dolan Ancient Guru

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    If cpu limitation is overated then why is your cpu overclocked to 3.6.If you downclocked it to about 2 gig then it would be about the same speed as a amd x2 4600+ run your 3dmark06 with your cpu at 2 gig then tell me theres no difference to when its at 3.6.If you do go sli 8800gtx then your cpu at 3.6 will bottleneck them.
     
  18. Simple Man

    Simple Man Banned

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    he's just trying to show off is all, he knows as well as we do that 8800 sli needs a very fast cpu to let it's potential out.
     
  19. Steve30x

    Steve30x Master Guru

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    Dude im getting a very close score to yours (Mine 9462) with a single 8800 GTS 320mb.
     
  20. John Dolan

    John Dolan Ancient Guru

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    You will get same kind of score as mine with a gts.Even though i have a gtx card my cpu is not fast enough to feed it so any advantage in speed my card has over yours is negated.If i had your card in my pc and benched marked it then put my card back in and benched again there would be little difference between the cards with my cpu.If you do the same thing with a e6800 cpu rig then you would see that the gtx card is 25% faster over the gts card.Your score shows it very clear as i scored 9300 with a gtx and my cpu at 2.7 but you scored 9400 with a gts but your cpu is at 2.9.This is a good read shows the 8800 cards need the fastest cpu http://www.tomshardware.co.uk/2006/11/29/geforce_8800_needs_the_fastest_cpu_uk/
     

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