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    how does one tell how overclockable a graphics card is?

    Discussion in 'Gaming (Software and Graphics Cards)' started by 660hpv12, Jul 29, 2008.

  1. 660hpv12

    660hpv12 Notebook Deity

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    I always had the notion that the overclockiblity has something to to with the card been GDDR2 or GDDR3. and it has been the case for the 8600gt and the 8400gs. my 8400gs is ddr3 and I have a 150mhz core/memory overclock on it and no other ddr2 version of the 8400gs can do that. And because of this I have turned down a offer on a sager np2096 only because its 9600gt is a GDDR2 I had assumed it cant be overclocked much. Is my notion well founded? or is it just a coincidence as with the 8600gt and the 8400gs. thanks for your help
     
    660hpv12, Jul 29, 2008
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  2. MadHater

    MadHater Notebook Deity

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    As far as I know from desktop computers, most of graphic cards with DDR3 memory are already pushed to their highest overclock limits, so I guess extended overclocking is not recommended. Maybe 8400GS DDR3 is just one model in entire lineup that can be overclocked with significant improvement to be got.
     
    MadHater, Jul 29, 2008
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  3. shogran

    shogran Notebook Guru

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    Sorry to Hijack but I have an 8600m GT 256mb and I have fiddled with overclocking it before... do you know the LIMIT I could push it to would be?

    Thanks
     
    shogran, Jul 29, 2008
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  4. 660hpv12

    660hpv12 Notebook Deity

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    based on my current notion (could turn out to be very wrong) it would depend on if its GDDR3 or not, if so a good 150mhz can be done
     
    660hpv12, Jul 29, 2008
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  5. ViciousXUSMC

    ViciousXUSMC Master Viking NBR Reviewer

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    There is no set way of knowing before hand. The only way to know is to overclock it little by little and test it along the way for stability and temps.
     
    ViciousXUSMC, Jul 29, 2008
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  6. Guitarsmasher

    Guitarsmasher Notebook Enthusiast

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    I agree with Vicious
     
    Guitarsmasher, Jul 29, 2008
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  7. shogran

    shogran Notebook Guru

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    Righty-oh thanks guys :) Back to the ATI Tool I go!
     
    shogran, Jul 29, 2008
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  8. 660hpv12

    660hpv12 Notebook Deity

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    so it really has nothing to do with it been GDDR2 or GDDR3 etc?
     
    660hpv12, Jul 29, 2008
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  9. Harleyquin07

    Harleyquin07 エミヤ

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    The only difference between the two memory types would be the final overclock values since the GDDR3 starts out higher by default and hence reaches higher maximum values. HOW MUCH you can overclock has nothing to do with the memory type and differs from card to card.
     
    Harleyquin07, Jul 29, 2008
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  10. Nocturnal310

    Nocturnal310 Notebook Virtuoso

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    do i kno u 660hpv12 ...are u in UK currently?
     
    Nocturnal310, Jul 29, 2008
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  11. 660hpv12

    660hpv12 Notebook Deity

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    nope I wish I can be in UK, stuck in Canada at the moment.
     
    660hpv12, Jul 29, 2008
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  12. synic

    synic Notebook Deity

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    OC it until it's unstable.. Once you reach an unstable point, go one step below. That's what I would do :p
     
    synic, Jul 29, 2008
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  13. Steven87

    Steven87 Notebook Consultant

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    I don't go to that point. I just overclocked upto the point that I keep good temperatures and have the performance I want. I found temperature increases a lot past a certain point and it isn't worth it pushing it further even if stable (more heat = more risk to components and shorter life). That's what I do.
     
    Steven87, Jul 29, 2008
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