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680 Overclocking (Calling all owners!) - Page 10

post #91 of 1059
Definitely worth waiting for custom models GTX680..

Simply VRM's are weak with 4 Phases for GPU, and Voltage regulator is cheap and mediocre, nothing like a Chill VR on GTX400 and GTX500 series cards..

That is a poor OC,my GTX480 hits 850Mhz on stock air cooling .. tongue.gif


CHEERS..
     
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post #92 of 1059
Quote:
Originally Posted by KingT View Post

Definitely worth waiting for custom models GTX680..
Simply VRM's are weak with 4 Phases for GPU, and Voltage regulator is cheap and mediocre, nothing like a Chill VR on GTX400 and GTX500 series cards..
That is a poor OC,my GTX480 hits 850Mhz on stock air cooling .. tongue.gif
CHEERS..

Apples & oranges... and your sig says 831mhz?
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post #93 of 1059
So what is the difference between Power Target and manually increasing the voltage?
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post #94 of 1059
Quote:
Originally Posted by KingT View Post

Definitely worth waiting for custom models GTX680..
Simply VRM's are weak with 4 Phases for GPU, and Voltage regulator is cheap and mediocre, nothing like a Chill VR on GTX400 and GTX500 series cards..
That is a poor OC,my GTX480 hits 850Mhz on stock air cooling .. tongue.gif
CHEERS..

So you're saying at a +150MHz increase in core clock without any voltage tweak is weak?

I'd like to see you do that on your cards. thumb.gif
    
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post #95 of 1059
Quote:
Originally Posted by kcuestag View Post

So you're saying at a +150MHz increase in core clock without any voltage tweak is weak?
I'd like to see you do that on your cards. thumb.gif

You cant adjust voltages. I think its the same for every card. You set it to 1200Mhz and there is a specific Voltage for that. Looks at the eVGA PX picture.
Also for those that got eVGA. Is it possible to set up lets say your Stock GTX 680 for maybe a Classified when it comes out?
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post #96 of 1059
After reading about the "OK yet disappointing" overclocking results, which I kind of feared all along might happen since the 680 was rumored to be an 'already high-clocked 660', I don't think it's that bad, and I also don't think it'll stay this way for long. I think Nvidia will see that the temperature limits are low and voltage control needs to be made easier and will adjust accordingly through future drivers. Seeing a bunch of posts about it will hopefully have an effect after a while. I never bought/monitored a card's launch, but have there been other cards that voltage-control/overclocking had gotten better with a little time and further driver releases?

Plus stock performance is fantastic, and small overclocks that have been hit have had a decent performance affect. After overclocking previous GPUs/CPUs, it may seem a bit disappointing that with the 680 we might only be "getting what we paid for" instead of the overclock adding free increases, but I have confidence in Nvidia and EVGA and the like. So even if I have to sell these two vanilla's in a few months each for $100 less and get the Lightning or Classified that really overclocks, it'll be worth the $200 hit to use these beasts for a few months instead of waiting for the non-references (which is where you will most likely see issues addressed. Hopefully through future drivers or versions of Precision, but hey, better late than never wink.gif ).
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post #97 of 1059
I was stable at 140/600 but decided to lower memory to 0 and increase core to 150 and it was just stable through Heaven. When test had just finished my temp was only 65C on max fan speed. Going to see how high I can make the core clock before increasing the memory clock. The 150/0 test also gave me a little lower of a score (1523) than my previous best which was at 140/600 (1610).

Edit: Crashed at 155/160. (These are all at default voltage). Time to increase memory.
Edited by haticK - 3/24/12 at 7:53am
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post #98 of 1059
I have to agree about waiting for non-reference cards honestly. I'm not a fan at all of this locked-down style of overclocking control and I'm sure that by the time the premium 680's (Lightning/DCUII/etc) come out there should be support for regular voltage control and HOPEFULLY the ability to disable boost. Until then I can't really recommend the 680 over the 7970 for those that like to find the limits of their cards...
post #99 of 1059
Wasn't it said that the 7970 has a similar limit on the voltage/overclocking? What kind of limit is on theirs?
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post #100 of 1059
Despite my disappointment with overclocking, i really love how quiet and cool this card runs, and it is just about equal to my 560tis that are overclocked to 950mhz, i need to somehow unload these cards and buy another 680

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