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Thread: 7900GTX vs 7800GTX512 vmoded

  1. #1
    X.I.P guess2098's Avatar
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    7900GTX vs 7800GTX512 vmoded

    7900GTX.....650/1600

    well, the timing of ram is been tweaked and hard to overclock too high unless change the timing!!! i saw some companies tweak their 7900gtx not as tight as original to give user some overclock...


    My vmoded 7800GTX512
    the "original no vmoded" 7800GTX512 is very hard to reach 650 without artifact... also i tweaked the timing of this ram. without vmoded, my seting can only go up to around 1700 (850), very very tight timing, that is why everyone saw my vmoded 7800GTX512 overclock before, the speed of the ram is only overclock to 1950ish

    let's see 7900GTX vs 7800GTX512 vmoded
    650/800 vs 650/800
    3Dmark06 is set as
    1680X1050 plus anisotrpic 16x

    single card

    7900GTX



    7800GTX




    SLi

    7900GTX SLi




    7800GTX512 SLi




    in fact, i feel only the 90nm core is smaller than 120nm, there are not diffierent under same speed!!!

    BUT REMEMBER!!!!
    there are only few non-vmoded 7800GTX512 can do 650 without artifact!!!
    Last edited by guess2098; 03-09-2006 at 02:24 AM.

  2. #2
    Memory Addict eva2000's Avatar
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    interesting and volts used on 7800GTX ? temps or each card under load/idle ?

  3. #3
    Admin Vapor's Avatar
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    Hmmmm, why is only the HDR/SM3.0 score dropping more on the 79 than the 78?

    Anyway, very insightful Denny, thanks

    Also, any chance of the other benchmarks getting compared like this?

  4. #4
    Master of nebulah frost nachthymnen's Avatar
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    That's an intresting compare
    Another reason to hold my GTX 7800 v-modded
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  5. #5
    Bandwidth Freak kakaroto's Avatar
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    Nice compare denny! So i can conclude that both cards are almost the same (clock per clock)?
    The 7900GTX also gives some points away on SM3.0/HDR

  6. #6
    Xtreme Member Fixxxer's Avatar
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    Good work!

    In fact 7800GTX and 7900GTX are the same card, and the only difference is that the 7900GTX has a 90nm GPU.

    BTW, 7900GTX overclock like hell, more than 7800GTX. For lots of people that's more than a good reason to take two.

  7. #7
    Xtreme Cruncher v0dka's Avatar
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    I must still say I'm a bit dissapointed in the 7900 though
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    I am about to buy either a 1900 XTX or 7900 GTX what would be the best choice?

  9. #9
    Live Long And Overclock perkam's Avatar
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    Wow....so its true then.

    7900GTX loses out to 7800GTX in BOTH SINGLE CARD AND SLI

    Dang....

    Perkam

  10. #10
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    Yeah but what about when their overclocked to the maximum headroom on stock coolers what then?

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    Xtreme Member CapFTP's Avatar
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    this is truly amazing.....good job !

  12. #12
    Xtreme Addict cupra's Avatar
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    great work guess, dono i guess that we expect more from the 7900gtx,
    so its a little dissapointed .
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  13. #13
    Live Long And Overclock perkam's Avatar
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    Quote Originally Posted by rapty
    Yeah but what about when their overclocked to the maximum headroom on stock coolers what then?
    There are some 7900GTX's with 1.2ns ram whereas 1.1 is guaranteed on the 7800GTX512

    So "maximum headroom" isn't all that different from 7800 This is definitely not a step up as going from X1800 to X1900 seeing as there were tangible differences there, unlike here.

    Perkam

  14. #14
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    So I come back to my original question do you think the 1900 XTX vs the 7900 GTX would be better or maybe two 7900 GT's?

  15. #15
    Live Long And Overclock perkam's Avatar
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    Two 7900GTs would be ze bomb Why ?

    Your answer lies here: http://www.xtremesystems.org/forums/...ad.php?t=91918

    Perkam

  16. #16
    Registered User DelaMaris's Avatar
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    But 7900GTX is on stock clocks, so if we overclock it we get much better score...What score does 1900 XTX get on stock clocks?

  17. #17
    Live Long And Overclock perkam's Avatar
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    Quote Originally Posted by DelaMaris
    But 7900GTX is on stock clocks, so if we overclock it we get much better score...What score does 1900 XTX get on stock clocks?
    with both stock cards,


    7900XTX > X1900XTX at stock 3dmark06 resolution.
    X1900XTX > 7900GTX at 1600x1200 for 3dmark06

    In 05, XTX takes both resolutions.

    In games the 7900GTX takes the X1900XTX a whole lot of times, but loses out at higher resolutions with AA.

    X1900XTX is faster than 7900GTX SLI in FEAR and HL2 at high resolutions with AA.


    Perkam

  18. #18
    Memory Addict eva2000's Avatar
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    Quote Originally Posted by perkam
    with both stock cards,


    7900XTX > X1900XTX at stock 3dmark06 resolution.
    X1900XTX > 7900GTX at 1600x1200 for 3dmark06

    In 05, XTX takes both resolutions.

    In games the 7900GTX takes the X1900XTX a whole lot of times, but loses out at higher resolutions with AA.

    X1900XTX is faster than 7900GTX SLI in FEAR and HL2 at high resolutions with AA.


    Perkam
    guess it will come down to drivers and oc'bility of the 2

  19. #19
    Registered User DelaMaris's Avatar
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    So 7900 GT performance is like old 7800 GTX?

  20. #20
    XS News Ubermann's Avatar
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    Soo..maybe its the most boring release so far but i wanna see what voltmods do to the core.
    Everything extra is bad!

  21. #21
    Live Long And Overclock perkam's Avatar
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    Quote Originally Posted by Ubermann
    Soo..maybe its the most boring release so far but i wanna see what voltmods do to the core.
    Boring !!!???

    The XS News Section is gonna explode !!! http://www.xtremesystems.org/forums/...play.php?f=144

    The 7600GT is owning the X1800GTO even !!!

    Perkam

  22. #22
    xtreme energy kiwi's Avatar
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    Quote Originally Posted by DelaMaris
    So 7900 GT performance is like old 7800 GTX?
    I'd say better because I expect them to clock higher There are already 550 core versions of GT which means OC potential is good.
    ...

  23. #23
    Live Long And Overclock perkam's Avatar
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    On stock cooler, Max oc should is 550/1500 for 7900GT based on reviews.

    Perkam

  24. #24
    Registered User DelaMaris's Avatar
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    EVGA is offering 7900 GT CO SUPERCLOCKED on 550 mhz and mem 1580mhz...

  25. #25
    Overclocking Guru OPPAINTER's Avatar
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    These 7900GTX cards are gunna fly

    No cold bug and need very little voltage. I was playing with one of mine yesterday for a little bit before I blew out my OS. Just getting started and reached the 900s with the core at 1.7V, didn't get a chance to play with the memory.

    OPP



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