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post #721 of 1059
Quote:
Originally Posted by Sir Cumference View Post

mad.gif Having trouble finding a stable OC. Heaven crashing anywhere from stage 4-12.

I think Im just gonna play BF3 as the benchmark. I mean if the game isnt crashing, thats fine with me.

Doesnt seem like it can do 1200+ Mhz

Yeah the off set isn't as important than finding the point of OC on base Core / Memory clocks where when the GPU boost kicks in it dosen't crash your GPU.

Example is the vanilla GTX 680 I had, I could go as high as +110 on the Core and +400 on Memory. GPU Boost would kick in and I hit 1213 Mhz on the Core.

This new GTX 680 SC (though I haven't had much time with it) I can go +55 on the Core and +250 Memory and my GPU Boost kicks in and after playing BF3 my GPU Boost has the Core maxed to 1254 Mhz and I didn't crash.

You can acheive a higher stable 3DMark11 mark than you can in Heaven but in the end BF3 or Crysis maxed settings is the best way to test your card. Best stress tests are the most demanding games you play. Since your not playing 3DMark11 or Heaven it's the most accurate in finding the most stable OC you can achieve. smile.gif
     
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post #722 of 1059
Guru3d posted another review claiming you can change vcore on the gtx 680.

I wonder if someone has been ghost writing Hilbert's reviews as of late considering it's well known that this has no effect.

It's such a tease! WTB vcore control.
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post #723 of 1059
I can get a max of +65 on my EVGA 680 SC, for a max boost clock speed of 1264 and still be stable in Unigine Heaven. Is this good/average/poor?
post #724 of 1059
Slightly above average I would say. Around 1200mhz is what I would call average.

EDIT: Actually you have an SC so it's probably average.
post #725 of 1059
Quote:
Originally Posted by Humafold View Post

Slightly above average I would say. Around 1200mhz is what I would call average.

EDIT: Actually you have an SC so it's probably average.

I would say just like past evga cards SC really means nothing as far as the max OC a card can hit.
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post #726 of 1059
Quote:
I would say just like past evga cards SC really means nothing as far as the max OC a card can hit.

Sure they do. SC means they are guaranteed 1124mhz to start with and from my understanding (take this with a grain of salt) they are binned reference cards.
post #727 of 1059
Quote:
Originally Posted by Humafold View Post

Quote:
I would say just like past evga cards SC really means nothing as far as the max OC a card can hit.

Sure they do. SC means they are guaranteed 1124mhz to start with and from my understanding (take this with a grain of salt) they are binned reference cards.

They are guaranteed to hit the SC clock yes this is true. But as far as binning thats it. They are not cherry picked gpu's. Just cards that can run at SC clocks which normally is all of them. I haven't seen one yet that can't do 1124.
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post #728 of 1059
Yes thats a very good OC regardless of the card. I noticed coming from vanilla flavor card to an SC card that it requires less offsets to achieve the same overclock's. Once again proving that the offsets for everyone may vary. What matters is the highest achievable overclock during the GPU boost that the card actually achieves.

So even if someone else says they are getting higher offsets doesn't mean higher overclock's what matters is the final result which can be viewed in GPU-Z maximum core specs.

As for the SC cards they are binned but only as Lightsout suggested to 1124 MHz. Anything beyond that is again luck of the silicone lottery. A vanilla flavor card can actually overclock higher than a super clock card just as well. EVGA or any other vendor for that matter only guarantees the overclocked specifications which they will keep under warranty to run at those core clock speeds.

My card hits 1254 MHz Core 1702 MHz memory stable and tested in Caspian Border BF3 multiplayer and other maps for the last two nights. Ton of fun and I'll be darn if my kill count got better per match. thumb.gif
     
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post #729 of 1059
Quote:
Originally Posted by Arizonian View Post

Yes thats a very good OC regardless of the card. I noticed coming from vanilla flavor card to an SC card that it requires less offsets to achieve the same overclock's. Once again proving that the offsets for everyone may vary. What matters is the highest achievable overclock during the GPU boost that the card actually achieves.

Thats because your base clock is higher right? So it requires less offset to hit the same clock.
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post #730 of 1059
Was able to do 1202/3305 on BF3 maxed out without a crash.

1215 kept crashing.

Funny, I was able to find an OC that passed Heaven, but once I got on BF3 I crashed after 15 minutes-ish of gameplay.

@humafold got it haha thumb.gif
Edited by Sir Cumference - 4/13/12 at 7:59pm
 
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