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Gigabyte GTX 670 OC Version *HANDS ON* - Page 119

post #1181 of 1506
Quote:
Originally Posted by Asfodhell View Post

You actually got a better overclock than my GTX670 ...
However, I can get +70 core and +250 mem stable within unigine heaven, which is NOT stable in Battlefield3.
Unigine is not the most stressfull test you can do, and certainly not reflect what you can get in games !
To run BF3 without crash (stable), I need to set my overclocking at +40 core and +90 mem .... mad.gif
Your limit at overclocking has nothing to do with temps (are you around 60°C in Unigine ?).
My card only drop the core clock once I reach 80°C (manual fan control at 20% or so), it gets up to 70°C with Furmark, OCCT GPU or Kombustor.
I only get 60°C withing BF3 or any other demanding game.

Thanks for your reply.

I played BF3 stable for 2-3 hours without any issues. If I"m not mistaken I was over 70C in unigine... in BF3 around 70C. The idle temp is 33C-34C. (25C room) What are your idle temps?

I haven't tried Furmark/OCCT/Komustor for too long, I'm srue temps would be much higher. I use unigine as a basic test, than I move to bf3.

Do you think replacing paste on GPU might help? Maybe I'll try different PCI slot?

Don't take me wrong guys, the card is a beast, it is just in my HEAD kookoo.gif If ain't broken don't fix it... If I RMA the card I migtht get worst performer, there is no guarnatees...
post #1182 of 1506
Quote:
Originally Posted by amd7674 View Post

H
The card came with only 1110Mhz boost and was only able to push the card +70 on core. If I go with over +80... Heaven would crash.... The card however allows me to o/c mem...+700
So my final stable clocks are 1180mhz on the core (boost) and 7500mhz on memory ..
.

Is that your boost clock speed or your maximum core speed (maximum core speed is boost clock + kepler boost)? You can't just read the boost clock number that is plainly visible when your trying to find your max overclock. You MUST put the card under load (heaven should be fine, but it's more demanding than a real game so your card may not boost as high), and then look at the core clock graph after the benchmark finishes and find what the maximum core was that was measured. I honestly don't think that's what your doing because 1180mhz is almost pathetically low, about 40mhz lower than anything I've ever seen, even lower than a reference card. I think once you do what i described above you will see your card is actually hitting around 1320mhz on the core. If you don't know what you should be looking, run heaven with precision X or afterburner open with the core clock graph visible and then post it here. Hope this helps thumb.gif

To answer your second question though just in case 1180mhz really is your max core clock, a 70mhz difference is around a 4% decrease in performance. So at 60fps that would be 57.6fps instead, or 2.4fps less. It's not a huge difference.
post #1183 of 1506
Quote:
Originally Posted by SeanPoe View Post

Is that your boost clock speed or your maximum core speed (maximum core speed is boost clock + kepler boost)? You can't just read the boost clock number that is plainly visible when your trying to find your max overclock. You MUST put the card under load (heaven should be fine, but it's more demanding than a real game so your card may not boost as high), and then look at the core clock graph after the benchmark finishes and find what the maximum core was that was measured. I honestly don't think that's what your doing because 1180mhz is almost pathetically low, about 40mhz lower than anything I've ever seen, even lower than a reference card. I think once you do what i described above you will see your card is actually hitting around 1320mhz on the core. If you don't know what you should be looking, run heaven with precision X or afterburner open with the core clock graph visible and then post it here. Hope this helps thumb.gif
To answer your second question though just in case 1180mhz really is your max core clock, a 70mhz difference is around a 4% decrease in performance. So at 60fps that would be 57.6fps instead, or 2.4fps less. It's not a huge difference.

1180 is on boost mad.gif This was with memory at defualt speeds and with o/c memory... doesn't make any differnce... redface.gif

I've used Furmark/Heaven/BF3 to verify it. Then GPU-Z and AF to read final boost clocks...

I'm using AF to boost power to 111% and try to o/c the card.....

The only thing I can see is a little higher temp than other users.... BF3 yelds about 70C temps, where other report 60C... with default auto fan....

Do you think reaseatting GPU with MX4 paste could help? Maybe there is too much goo on GPU causing poor o/c resutls? Also should I try another PCI slot?

or should I just try to RMA / replace the card if I can (will look into it later)....
post #1184 of 1506
Quote:
Originally Posted by amd7674 View Post

Thanks for your reply.
I played BF3 stable for 2-3 hours without any issues. If I"m not mistaken I was over 70C in unigine... in BF3 around 70C. The idle temp is 33C-34C. (25C room) What are your idle temps?
I haven't tried Furmark/OCCT/Komustor for too long, I'm srue temps would be much higher. I use unigine as a basic test, than I move to bf3.
Do you think replacing paste on GPU might help? Maybe I'll try different PCI slot?
Don't take me wrong guys, the card is a beast, it is just in my HEAD kookoo.gif If ain't broken don't fix it... If I RMA the card I migtht get worst performer, there is no guarnatees...

You honestly don't need to worry about temperatures with these cards. Since you can't manually control voltage and these GPU's will automatically down-volt/down-clock when at certain temperatures and TDP, you literally can't overheat these. All that really maters is you keep them below 70C while under real world load. That last bit is important because if you want to find your maximum overclock for playing real games, you don't want to be using things like Furmark/OOCT/Komustor. Those run way too hot and use way too much power so they artificially force the 670 to start throttling down its boost (boost is based on temperature and TDP). There's really no reason to ever use any of those with a Kepler based gpu. Just stick with Heaven and 3dMark11, but keep in mind these run hotter and use more power than the majority of real games. So i would shoot for under 70c still but hitting 74-78C in Heaven is usually fine as it won't effect your real game performance.
post #1185 of 1506
Quote:
Originally Posted by amd7674 View Post

1180 is on boost mad.gif This was with memory at defualt speeds and with o/c memory... doesn't make any differnce... redface.gif
I've used Furmark/Heaven/BF3 to verify it. Then GPU-Z and AF to read final boost clocks...

Post a screenshot with precision X or After burner open after running Heaven, please. I want to see your max core clock, TDP, and temperature/fanspeed.
Edited by SeanPoe - 5/28/12 at 8:27am
post #1186 of 1506
Quote:
Originally Posted by amd7674 View Post

Hey Guys...
I'm not sure what to do... I guess I'm happy with my card, but after reading some many "success" stories...and the card on average getting 1250mhz on core...
The card came with only 1110Mhz boost and was only able to push the card +70 on core. If I go with over +80...
-- snip --
Please advise...

A 70MHz difference between these clocks is 5.9%, which after account for OC scaling (typically around 70%) is likely to be around 4% difference in FPS on average.

This means that if you're at 50fps at your clock, someone at 1250 would get around 52fps. That kind of difference is perf is 100% entirely invisible to the naked eye. You really have to get about 15% fps difference (around 19% clock difference) in order to even POSSIBLY see a performance difference without studying scores on benchmarks. And even then, it's a very minor effect, visibly.

Also being able to get a nice memory overclock does help mitigate the somewhat poor core OC, esp. in memory bandwidth sensitive games like Crysis/WH, Metro, and I'm sure some other games.

I know what you mean by something like this 'getting in your head' but the reality is you'd never, ever 'see' a difference in performance w/your card vs a card at 1250, and in fact, you would be unlike to even 'see' one vs a card at 1350MHz.

Honestly, with the exception of a few cards out there that are truly stellar overclockers (GTX465/470, HD7970, for example) that can do upwards of +35% over stock clocks ... overclocking the vast majority of GPU's has very little practical value aside from the 'fun' of it. I wouldn't let a little 4% difference in framerates get ya down wink.gif
    
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post #1187 of 1506
Quote:
Originally Posted by amd7674 View Post

Hey Guys...
I'm not sure what to do... I guess I'm happy with my card, but after reading some many "success" stories...and the card on average getting 1250mhz on core...
The card came with only 1110Mhz boost and was only able to push the card +70 on core. If I go with over +80... Heaven would crash.... The card however allows me to o/c mem...+700
So my final stable clocks are 1180mhz on the core (boost) and 7500mhz on memory ..
I wonder how much am I losing in performance between 1250 (average o/c) vs 1180 core clocks? Is it like 5% in performance = 3-5FPS in games?
Does anyone know if reseating heatsink could help temps a little? Would I void Gigabyte warranty by applying my mx4 paste on it?
Also I might try putting GPU in different pci slots, some users reported better clocks on pci 2.0 vs. pci 3.0 slots....
I know 70Mhz is not much, but it is in my head... I cannot get rid off it... LOL .... I'm even considering returning the card (not sure if I can).... however the wait for replacement (out of stock) or waiting for Asus TOP 670 (preorder) might be long....
I just put together a new system IB 3570k @ 4.5Ghz on z77 mobo, 16gb ram..... and I'm a little disappointed with GPU... redface.gif
Please advise...

I think you shouldn't worry about 70 mhz. Think of it this way, your card is faster than a stock 680. I say enjoy your games and forget about it.
post #1188 of 1506
Quote:
Originally Posted by dragonsamus View Post

I think you shouldn't worry about 70 mhz. Think of it this way, your card is faster than a stock 680. I say enjoy your games and forget about it.

His card is not faster than a 680 by any means, what are you talking about?
post #1189 of 1506
Quote:
Originally Posted by amd7674 View Post

Thanks for your reply.
I played BF3 stable for 2-3 hours without any issues. If I"m not mistaken I was over 70C in unigine... in BF3 around 70C. The idle temp is 33C-34C. (25C room) What are your idle temps?
I haven't tried Furmark/OCCT/Komustor for too long, I'm srue temps would be much higher. I use unigine as a basic test, than I move to bf3.
Do you think replacing paste on GPU might help? Maybe I'll try different PCI slot?
Don't take me wrong guys, the card is a beast, it is just in my HEAD kookoo.gif If ain't broken don't fix it... If I RMA the card I migtht get worst performer, there is no guarnatees...

What fan speed are you running why you are seeing 70C? Also, do you have another card right next to the GPU.

What I have noticed is the the offset isn't everything it seems. My stock boosted is 1160. The max OC boosted I see for my card is 1280 but some cards render either more or less frames at the same boost. Remember that the memory offset comes into play as well. Too much memory can hinder performance.

cheers.gif
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post #1190 of 1506
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Originally Posted by Bosniac View Post

Quote:
Originally Posted by dragonsamus View Post

I think you shouldn't worry about 70 mhz. Think of it this way, your card is faster than a stock 680. I say enjoy your games and forget about it.

His card is not faster than a 680 by any means, what are you talking about?
I have to agree. Yes this card has the ability to beat a reference 680 with a large OC but it definitely is not with that mild overclock.
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