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~~The GTX 670 Overclocking Master-Guide~~ - Page 94

post #931 of 3357
Anyone else having downclocking issues with the 310.33 beta drivers?
post #932 of 3357
Is it normal to get a lower Kepler Boost, without any thermal or power throttling involved, when raising the core clock offset with PrecisionX? For example, I set my core clock offset to +85MHz and only got a +78MHz increase in Unigine, monitored through both PrecisionX's OSD and GPU-Z. Here are the details:

GPU: EVGA GTX 670 FTW
Stock Boost Clock: 1085MHz
Stock Max Boost: 1215MHz

So my maximum Kepler Boost is 130MHz. Am I right? Now, check out these statistics:

+35MHz Core Clock Offset: I get to 1120MHz Boost Clock and 1241MHz Max Boost which means Kepler Boost got decreased by 9MHz.
+65MHz Core Clock Offset: I get to 1150MHz Boost Clock and 1267MHz Max Boost which means Kepler Boost got decreased by 13MHz.
+85MHz Core Clock Offset: I get to 1170MHz Boost Clock and 1293MHz Max Boost which means Kepler Boost got decreased by 7MHz.

All of these tests were run with temperatures at 66°C maximum, and the max power consumption recorded was 111% TDP while I've set the power target to 145% TDP. So I'm guessing there was no thermal or power throttling involved, and again if there was, it would only decrease the Kepler Boost in steps of 13MHz.

I'm using the non-beta 306.97 NVIDIA drivers and version 3.0.4 of PrecisionX, which by the way has min and max values in the graphs.

Also to avoid any confusion, my signature rig mentions two 670 FTWs but I'm currently just running one. I'm expecting my second one next Tuesday! biggrin.gif

Thanks in advance.
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post #933 of 3357
Question guys: Just got my 670...
Why is my Power % only around 33%? The max is 45% power %...I'm using afterburner...

Power % is below the screen showing but its from 30-33% when benching on heaven...
post #934 of 3357
Quote:
Originally Posted by Daredevil 720 View Post

Is it normal to get a lower Kepler Boost, without any thermal or power throttling involved, when raising the core clock offset with PrecisionX? For example, I set my core clock offset to +85MHz and only got a +78MHz increase in Unigine, monitored through both PrecisionX's OSD and GPU-Z. Here are the details:
GPU: EVGA GTX 670 FTW
Stock Boost Clock: 1085MHz
Stock Max Boost: 1215MHz
So my maximum Kepler Boost is 130MHz. Am I right? Now, check out these statistics:
+35MHz Core Clock Offset: I get to 1120MHz Boost Clock and 1241MHz Max Boost which means Kepler Boost got decreased by 9MHz.
+65MHz Core Clock Offset: I get to 1150MHz Boost Clock and 1267MHz Max Boost which means Kepler Boost got decreased by 13MHz.
+85MHz Core Clock Offset: I get to 1170MHz Boost Clock and 1293MHz Max Boost which means Kepler Boost got decreased by 7MHz.
All of these tests were run with temperatures at 66°C maximum, and the max power consumption recorded was 111% TDP while I've set the power target to 145% TDP. So I'm guessing there was no thermal or power throttling involved, and again if there was, it would only decrease the Kepler Boost in steps of 13MHz.
I'm using the non-beta 306.97 NVIDIA drivers and version 3.0.4 of PrecisionX, which by the way has min and max values in the graphs.
Also to avoid any confusion, my signature rig mentions two 670 FTWs but I'm currently just running one. I'm expecting my second one next Tuesday! biggrin.gif
Thanks in advance.

If you roll back to 306.23 driver, you can go up and down incrementally rather then the 13MHz straps. The latest beta also includes the 13MHz straps. Boo! mad.gif
post #935 of 3357
Wow nismofreak, thanks man you opened my eyes! I did some tests ands it's indeed limiting me to 13MHz steps.

What got me confused though is that +65 (which is 5 times 13) got me +52 (which is 4 times 13). Both are products of 13, so they should be applied correctly. When I bumped up the offset to +66, however, it gave me +65, which got me to 1280MHz and that seems stable in Unigine. biggrin.gif

Got to wait for my second 670 FTW though, to decide my SLI clocks. I think 1280MHz is a pretty good clock, and I would be damn happy if the other card also goes there. Surprised by the FTW's cooler by the way, didn't even touch 67°C and it's not that loud at all. It's the air movement that makes the noise, not the fan itself!
Edited by Daredevil 720 - 10/26/12 at 11:57pm
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post #936 of 3357
Quote:
Originally Posted by nismofreak View Post

If you roll back to 306.23 driver, you can go up and down incrementally rather then the 13MHz straps. The latest beta also includes the 13MHz straps. Boo! mad.gif

I think I'll try that out later. 310.33 is really unstable, battefield crashes all the time. I hope 306.23 works better as I can't even benchmark in heaven... Even battlefield (on low) stables the core clock...not on ultra with everything on for some reason, any of you guys know why?
Edited by glyph0reo - 10/27/12 at 2:40am
post #937 of 3357
Just orederd ASUS PCI-E N GeForce GTX 670 DirectCU II, looking to OC once it arrives
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post #938 of 3357
I hate that nvidia are limiting us this much...

I might regret that I bought asus dcII, can't get it past 1120 boost clock without it crashing on me...:/ I think my kepler boost is about 150 though, which I'm really happy about!

Seems that everybody else is getting a better clock than myself...
Just for reference, when people share their clock speeds, are they referring to their boost clock or their max boost ?
post #939 of 3357
Quote:
Originally Posted by glyph0reo View Post

I hate that nvidia are limiting us this much...
I might regret that I bought asus dcII, can't get it past 1120 boost clock without it crashing on me...:/ I think my kepler boost is about 150 though, which I'm really happy about!
Seems that everybody else is getting a better clock than myself...
Just for reference, when people share their clock speeds, are they referring to their boost clock or their max boost ?

I'm using the same terminology presented by the OP. The 1280MHz I mentioned above is my Max Boost (or Max Boosted Frequency/MBF), which is my Boost Clock + Kepler Boost.

According to your sayings your Max Boost should be around 1270MHz, which is pretty close to mine and what most people get. Not bad at all!

If your temps are good you could try the voltage unlock mod to give more than 1.175V to your GPU and up the clocks a bit more. However this involves flashing a new BIOS to the GPU, which could f*ck **** up if something happens during the flash. Your choice. I would stay there. thumb.gif
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Orthrus
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post #940 of 3357
Quote:
Originally Posted by Cakewalk_S View Post

Question guys: Just got my 670...
Why is my Power % only around 33%? The max is 45% power %...I'm using afterburner...

Power % is below the screen showing but its from 30-33% when benching on heaven...

Hi Guys,
I have the same issue with my ASUS card. All used tools show the same value as described by Cakewalk_S.
Someone knows the reason?
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