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    is my 3940xm+7970m the fastest?

    Discussion in 'Sager and Clevo' started by littlecx, Aug 30, 2015.

  1. littlecx

    littlecx Notebook Deity

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    1440946960174.jpg Screenshot_2015-08-30-23-03-48.png
     
    littlecx, Aug 30, 2015
    #1
  2. littlecx

    littlecx Notebook Deity

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    Just saw someone got 5992 with 3920xm
     
    littlecx, Aug 30, 2015
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  3. littlecx

    littlecx Notebook Deity

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    ok i got 5995. highest now with stock voltage 7970m.
    [​IMG]
     
    littlecx, Aug 31, 2015
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  4. TomJGX

    TomJGX I HATE BGA!

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    Try increasing voltage but you are really near the limit of the card IMO... Not a bad firestrike graphics score though.. About 1500 points from the stock 970M..

    Sent from my LG-H811 using Tapatalk
     
    TomJGX, Sep 1, 2015
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  5. Ethrem

    Ethrem Notebook Prophet

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    I'd be careful trying to push those cards... They are prone to failure as it is.
     
    Ethrem, Sep 1, 2015
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  6. littlecx

    littlecx Notebook Deity

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    I found others overvolt the desktop 7870 to 1.3v. Can I do that to 7970m?
     
    littlecx, Sep 2, 2015
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  7. i_pk_pjers_i

    i_pk_pjers_i Even the ppl who never frown eventually break down

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    I would not suggest overvolting a laptop GPU, that's just asking for failure. Unless you have a resolution higher than 1080p or want to drive a refresh rate higher than 60 Hz, you likely won't need overclocking THAT extreme.
     
    i_pk_pjers_i, Sep 3, 2015
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  8. littlecx

    littlecx Notebook Deity

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    other than overclock. i also underclock both gpu and mem to the lowest possible speed in standby mode. original gpu clock is 300 and mem is 150. now both 100. anything below 100 is not allowed.
    [​IMG]
     
    Last edited: Sep 3, 2015
    littlecx, Sep 3, 2015
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  9. littlecx

    littlecx Notebook Deity

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    finally break 6k
    [​IMG]
     
    littlecx, Sep 6, 2015
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  10. littlecx

    littlecx Notebook Deity

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    littlecx, Sep 6, 2015
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  11. TomJGX

    TomJGX I HATE BGA!

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    Great Job! However I wouldn't run games at those clocks for too long or you'll burn out the GPU lol.. You really have a golden sample...
     
    TomJGX, Sep 6, 2015
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  12. littlecx

    littlecx Notebook Deity

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    this is mainly constributed by 3940xm. actually i did run firestrike at even higher gpu core 1065 successfully but that speed crash in 3dmark11 so i treat that speed is invalid.
    i spent sometime tuning the 3940xm and one thing i found is interesting: upping the bclk will get adverse effects.
    i have tried:
    99.76 (default)*44=4389.44
    102*43=4386
    for 102 bclk, there is only 3.44Mhz slower in cpu clock but ram is much higher. however i got more than 100 firestrike marks lower than 99.76. so i dont know for what reasons upping bclk is not a good choice and it even slow the whole system.
     
    littlecx, Sep 7, 2015
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  13. SegaDE

    SegaDE Notebook Guru

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    SegaDE, Sep 8, 2015
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  14. littlecx

    littlecx Notebook Deity

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    I made this at stock voltage. Although I saw the highest core at stock voltage is 1100 from another person
     
    littlecx, Sep 8, 2015
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  15. SegaDE

    SegaDE Notebook Guru

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    On Stock voltage i can Hit 1055-1060 MHz on core, just like u. This scores i Made After overvoltig to 1.1v and overclocking the core to 1115-1120 MHz.
    But its not for everyday use, the gpu getting to hot. For everyday use I undervolted it and Run 900mhz @ 0.975v and its cooler than Stock [email protected]
     
    SegaDE, Sep 9, 2015
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  16. littlecx

    littlecx Notebook Deity

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    i dont understand the voltage shown in vbios editor is 1.075, but in gpu-z is 1.05?
    [​IMG]
     
    littlecx, Sep 9, 2015
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  17. TomJGX

    TomJGX I HATE BGA!

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    Yeah I noticed this before myself too... It happens like this..
     
    TomJGX, Sep 9, 2015
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  18. littlecx

    littlecx Notebook Deity

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    that means either 1.05 or 1.1 if flash?
     
    littlecx, Sep 9, 2015
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  19. TomJGX

    TomJGX I HATE BGA!

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    No, if VBios has 1.1V, the card will actually use 1.075V when running... So 1.075V in BIOS is 1.05.. Basically 0.025V less...

    Sent from my LG-H811 using Tapatalk
     
    TomJGX, Sep 10, 2015
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