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~~The GTX 670 Overclocking Master-Guide~~ - Page 93

post #921 of 3357
Hi.

Great guide.Thanks

I follow your guide,but I can't understand why my card react like that to oc I try to do.

Here are the links to some photos:

1. http://www.fotosik.pl/pokaz_obrazek/edc5051b8cae3e83.html
2. http://www.fotosik.pl/pokaz_obrazek/dc09448e8da30300.html
3. http://www.fotosik.pl/pokaz_obrazek/ea69bed4b4a8f101.html

1-Power limit set to 100% and gpu voltage to 988mv-stock
2- PL 100% gpu voltage 1175mv max Values OC are all the same for those 3 points: +62mhz core and + 500mhz memory
3- PL 114% gpu voltage 1175mv max

MSI GeForce GTX 670 OC Twin Frozr Power Edition
- Core Clock: 1019MHz after oc 1083mhz
- Core Boost Clock: 1079MHz after oc 1160mhz kepler boost max 1228 mhz
-memory 7008mhz

Why my card after applying max power limit and max gpu voltage is becoming more unstable?My chip doesn't like more voltage?
Will I be better of using msi afterburner?
Edited by jimhaumman - 10/19/12 at 4:32am
post #922 of 3357
Just finished building my first desktop pc this past month, so I am still a total noob. But, with this simple guide to (and explanation of) Kepler overclocking, I have gotten what appears to be a pretty decent overclock of my 670, without much trouble. Here is my experience with the 670 over the past weekend.

- Model:GIGABYTE GV-N670OC-2GD (Windforce x3) $360 http://www.newegg.com/Product/Product.aspx?Item=N82E16814125423
- Stock Clocks: 980/1059, 1502 (3004) mem
- Heaven benchmark: (1137 MHz GPU Clock according to GPU-Z and Precision-X) 45.0 FPS, 1132 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-000-0%20unigine_20121019_0102.html
- My Kepler Boost seems to be ~90MHz , but also sometimes ~77MHz (and I have never gone above 65C or 90% TDP in Heaven IIRC). Kepler boost at stock = 1137-1059= 78MHz
- Didn't touch install CD. Went right to Nvidia's website for the newest drivers.


As instructed by the guide, I first pushed the core clock as far as it would go, leaving the memory at stock (+0MHz). The highest core offset that allowed me to finish a Heaven benchmark was +174
Here are some of the results that I had:
+153 48.1 FPS, 1211[/COLOR] file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/153-000%20unigine_20121018_2307.html
+165 48.5 FPS, 1222 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/165-000-0%20unigine_20121018_2326.html
+170 48.5 FPS, 1222 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/170-000-0%20unigine_20121018_2335.html
+174 48.5 FPS, 1223 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/174-000-0ithinkunigine_20121018_2344.html

I was starting to see what might be artifacts so I started bringing the offset down a bit to see how much performance I would lose. I settled on +141 for the time, as my heaven scores only dropped around 20 points with 34 less on the core offset
+141 47.8 FPS, 1204 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/141-000-0%20unigine_20121019_0031.html .


Then, I turned the core offset back to 0, and started increasing the memory speed.
+200 46.4 FPS, 1170 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-200-0%20unigine_20121019_0236.html
+300 47.1 FPS, 1187 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-300-2dragonunigine_20121019_0244.html
+400 47.7 FPS, 1203 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-400-2d%20unigine_20121019_0256.html
+500 48.1 FPS, 1211 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-500-wasnt%20watchin%20unigine_20121019_0304.html
+600 48.5 FPS, 1221 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-600-0unigine_20121019_0312.html
+700 48.9 FPS, 1231 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-600-0%20unigine_20121019_0321.html
+800 49.1 FPS, 1237 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-800-0%20unigine_20121019_0328.html
+900 31.4 FPS, 790 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-900-2%20lgit%201d%20unigine_20121019_0335.html

As you can see, performance fell off sharply at +900MHz to the memory, so I decided +800 would be fine for this portion of the overclocking, and moved on to combining the two offsets for the maximum performance in Heaven.

I believe this was my highest stable run:
+140 core, +800 memory: 53.1FPS, 1337 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/140-800-1d%20unigine_20121019_0352.html
I must have crashed later because I pushed it down a bit and I thought I was stable at +141, +615 because I ran ~10 heaven benchmarks stable, but on the very last one - just when I said to myself "well, at least I know I'm stable here" - it crashed after the benchmark
*** NOTE: I had to do a clean reinstall of the newest drivers after this crash. After the crash I was getting ~30 FPS and ~750 (Power Percent below 70% TDP) on just about whatever settings I used in Precision-X. Restarting the computer didn't help. The clean reinstall worked, however. I also uninstalled and reinstalled Precion-X and Heaven, just to be safe.

I was stable at +141,+600 for a long time, but eventually crashed after a heaven benchmark, so I moved it down a bit more.
*Here's the thing I noticed: as I gradually brought the core offset down from +141, I noticed that I was still getting 1280 MHz max GPU clock (according to P-X and GPU-Z) all the way down to +131 MHz. At +130 MHz, the GPU Clock read 1267 MHz. So, it seems that any offset between +131MHz and +143 gives me a GPU clock of 1280 (+144 gives me 1293 and crashes). Knowing that, I settled on +131. And, indeed, the scores I get at +131, +600 are just about the same as the scores I get at +141, +600, with the added benefit of having never crashed yet (which the +141,+600 settings did one time)

I have benchmarked at 131-600 for quite a bit now, with no crashes in Heaven, 3dMark11, or Furmark. My Heaven scores at this setting have been between 1300 and 1320 in the 20 (or so) runs I've made.
Here are some examples:
51.7 FPS, 1303 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1700.html
51.8 FPS, 1305 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1514.html
52.2 FPS, 1314 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1525.html
52.1 FPS, 1313 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1531.html
51.8 FPS, 1305 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1623.html
52.0 FPS, 1310 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1629.html



And that's where I am now. Games run great, and the card stays cool and quiet. My fan curve has the fans on 20-30% upto 50C, up to around 60% in the high 60s, and the hottest the card has gotten so far is 66C after 30 min of Furmark testing. During Heaven, the only time I hear the fan at all is at a couple points around the airship.


As I wrote earlier, I believe my Kepler boost to be 90MHz because, at these settings: 1280 - (1059 + 131) = 1280 - 1190 = 90


Also, these settings utilize a maximum of 89% of TDP in Heaven (It did go into the mid 90s during furmark), mostly averaging in the low 80s (I'd say just over 80%). This makes me wonder how much more I could get out of the card with a modified BIOS where I can increase the voltage. Should I just leave well enough alone?


I was planning on getting the 7970, but I couldn't find any good deals on one with a good cooler, so I pulled the trigger on the Windforce 670 and I think I made the right choice. The 7970s can OC a bit further, but I can't imagine they would be this cool or quiet.


Thanks to the OP for the wonderful guide. This is why I love the internet.
post #923 of 3357
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by Cheepnis View Post

Just finished building my first desktop pc this past month, so I am still a total noob. But, with this simple guide to (and explanation of) Kepler overclocking, I have gotten what appears to be a pretty decent overclock of my 670, without much trouble. Here is my experience with the 670 over the past weekend.
- Model:GIGABYTE GV-N670OC-2GD (Windforce x3) $360 http://www.newegg.com/Product/Product.aspx?Item=N82E16814125423
- Stock Clocks: 980/1059, 1502 (3004) mem
- Heaven benchmark: (1137 MHz GPU Clock according to GPU-Z and Precision-X) 45.0 FPS, 1132 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-000-0%20unigine_20121019_0102.html
- My Kepler Boost seems to be ~90MHz , but also sometimes ~77MHz (and I have never gone above 65C or 90% TDP in Heaven IIRC). Kepler boost at stock = 1137-1059= 78MHz
- Didn't touch install CD. Went right to Nvidia's website for the newest drivers.
As instructed by the guide, I first pushed the core clock as far as it would go, leaving the memory at stock (+0MHz). The highest core offset that allowed me to finish a Heaven benchmark was +174
Here are some of the results that I had:
+153 48.1 FPS, 1211[/COLOR] file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/153-000%20unigine_20121018_2307.html
+165 48.5 FPS, 1222 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/165-000-0%20unigine_20121018_2326.html
+170 48.5 FPS, 1222 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/170-000-0%20unigine_20121018_2335.html
+174 48.5 FPS, 1223 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/174-000-0ithinkunigine_20121018_2344.html
I was starting to see what might be artifacts so I started bringing the offset down a bit to see how much performance I would lose. I settled on +141 for the time, as my heaven scores only dropped around 20 points with 34 less on the core offset
+141 47.8 FPS, 1204 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/141-000-0%20unigine_20121019_0031.html .
Then, I turned the core offset back to 0, and started increasing the memory speed.
+200 46.4 FPS, 1170 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-200-0%20unigine_20121019_0236.html
+300 47.1 FPS, 1187 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-300-2dragonunigine_20121019_0244.html
+400 47.7 FPS, 1203 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-400-2d%20unigine_20121019_0256.html
+500 48.1 FPS, 1211 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-500-wasnt%20watchin%20unigine_20121019_0304.html
+600 48.5 FPS, 1221 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-600-0unigine_20121019_0312.html
+700 48.9 FPS, 1231 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-600-0%20unigine_20121019_0321.html
+800 49.1 FPS, 1237 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-800-0%20unigine_20121019_0328.html
+900 31.4 FPS, 790 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/000-900-2%20lgit%201d%20unigine_20121019_0335.html
As you can see, performance fell off sharply at +900MHz to the memory, so I decided +800 would be fine for this portion of the overclocking, and moved on to combining the two offsets for the maximum performance in Heaven.
I believe this was my highest stable run:
+140 core, +800 memory: 53.1FPS, 1337 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/140-800-1d%20unigine_20121019_0352.html
I must have crashed later because I pushed it down a bit and I thought I was stable at +141, +615 because I ran ~10 heaven benchmarks stable, but on the very last one - just when I said to myself "well, at least I know I'm stable here" - it crashed after the benchmark
*** NOTE: I had to do a clean reinstall of the newest drivers after this crash. After the crash I was getting ~30 FPS and ~750 (Power Percent below 70% TDP) on just about whatever settings I used in Precision-X. Restarting the computer didn't help. The clean reinstall worked, however. I also uninstalled and reinstalled Precion-X and Heaven, just to be safe.
I was stable at +141,+600 for a long time, but eventually crashed after a heaven benchmark, so I moved it down a bit more.
*Here's the thing I noticed: as I gradually brought the core offset down from +141, I noticed that I was still getting 1280 MHz max GPU clock (according to P-X and GPU-Z) all the way down to +131 MHz. At +130 MHz, the GPU Clock read 1267 MHz. So, it seems that any offset between +131MHz and +143 gives me a GPU clock of 1280 (+144 gives me 1293 and crashes). Knowing that, I settled on +131. And, indeed, the scores I get at +131, +600 are just about the same as the scores I get at +141, +600, with the added benefit of having never crashed yet (which the +141,+600 settings did one time)
I have benchmarked at 131-600 for quite a bit now, with no crashes in Heaven, 3dMark11, or Furmark. My Heaven scores at this setting have been between 1300 and 1320 in the 20 (or so) runs I've made.
Here are some examples:
51.7 FPS, 1303 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1700.html
51.8 FPS, 1305 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1514.html
52.2 FPS, 1314 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1525.html
52.1 FPS, 1313 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1531.html
51.8 FPS, 1305 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1623.html
52.0 FPS, 1310 file://muther/Users/M.U.T.H.E.R/Documents/---%20HEAVEN%20RESULTS/131-600%20unigine_20121020_1629.html
And that's where I am now. Games run great, and the card stays cool and quiet. My fan curve has the fans on 20-30% upto 50C, up to around 60% in the high 60s, and the hottest the card has gotten so far is 66C after 30 min of Furmark testing. During Heaven, the only time I hear the fan at all is at a couple points around the airship.
As I wrote earlier, I believe my Kepler boost to be 90MHz because, at these settings: 1280 - (1059 + 131) = 1280 - 1190 = 90
Also, these settings utilize a maximum of 89% of TDP in Heaven (It did go into the mid 90s during furmark), mostly averaging in the low 80s (I'd say just over 80%). This makes me wonder how much more I could get out of the card with a modified BIOS where I can increase the voltage. Should I just leave well enough alone?
I was planning on getting the 7970, but I couldn't find any good deals on one with a good cooler, so I pulled the trigger on the Windforce 670 and I think I made the right choice. The 7970s can OC a bit further, but I can't imagine they would be this cool or quiet.
Thanks to the OP for the wonderful guide. This is why I love the internet.
Thank you for some good ol' hard data! +rep for the info.

And yes go for the bios... who do you think we are, people who buy Dells?
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post #924 of 3357
Quote:
Originally Posted by Cheepnis View Post

[massive snip]
*Here's the thing I noticed: as I gradually brought the core offset down from +141, I noticed that I was still getting 1280 MHz max GPU clock (according to P-X and GPU-Z) all the way down to +131 MHz. At +130 MHz, the GPU Clock read 1267 MHz. So, it seems that any offset between +131MHz and +143 gives me a GPU clock of 1280 (+144 gives me 1293 and crashes). Knowing that, I settled on +131. And, indeed, the scores I get at +131, +600 are just about the same as the scores I get at +141, +600, with the added benefit of having never crashed yet (which the +141,+600 settings did one time)

I have noticed that very same thing with the newest driver:306.97. I have rolled back to 306.23 to get more fine tuning over the core clock rather than the 13MHz straps. I haven't noticed any loss of OC ability between the two but I do need to spend more time with 306.23 and test the difference between the two. YMMV
Edited by nismofreak - 10/22/12 at 8:53pm
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post #925 of 3357
I've been trying to overclock my asus dcII non-TOP 4gb for a while, following this guide. I've been using Precision X and Afterburner.

I have pretty much 2 issues:

All tests done with core clock @ offset + 120 = 980 + 1100
Power target @ 122%
voltage @ 1175 mV


1. When using precision with the heaven benchmark, the card is pretty much stable about 980 mhz and sometimes pushes up towards max 1006 and can go down to as low as 960mhz, which I think is odd. But when I've turned on the benchmark option(F9) and hit escape again the clock bumps up to 1254 (when looking at the dragon statue) - meaning my kepler boost is @ 154? why the hell isn't this stable? the voltage is stable though an the GPU never reaches more than 60 degrees Celsius. I've tried using BF 3 but the same thing occurs except that it boosts itself a litte bit higher at times but never 1254, except when I alt+tab out and it stays at windowed mode.
Edit: Just ran BF3 again, at first the clock was good, but then it stabled itself down to 901.

2. When using Afterburner it stays generally @ a higher core clock than Precision, but still not stable, it jumps up to 1254 when running the benchmark sometimes, something that precision is not letting it do at all. Problem here is that the GPU voltage isn't stable at 1175 it stays at just about 1000 mV, something that can quickly ruin my overclocking potential!
The overclock is bizarre in BF3 haven't tested it that much.

Could you have both softwares at the same time, or would one ruin for the other.

Heaven Benchmarks: (all same settings)

Precision X v3.0.4:

FPS: 38.8
Scores: 977
Min FPS: 24.0
Max FPS: 96.8

Afterburner 2.2.4

FPS: 46
Scores: 1158
Min FPS: 22.1
Max FPS: 118.9

It's a pretty substantial score, FPS and max FPS difference.

You guys have any clues I'll try to get some screens up, but I'm pretty busy atm, but I'll see what I can do:)

I've just bought the card, and I really want a good clock on it, atleast a stable one!

Edit: Is is just me this happens to?
Edited by glyph0reo - 10/24/12 at 6:22am
post #926 of 3357
Quote:
Originally Posted by nismofreak View Post

I have noticed that very same thing with the newest driver:306.97. I have rolled back to 306.23 to get more fine tuning over the core clock rather than the 13MHz straps. I haven't noticed any loss of OC ability between the two but I do need to spend more time with 306.23 and test the difference between the two. YMMV

per several people on the EVGA forums, the new beta 310.33 driver (released 10/23) is VERY solid and fixes the down clocking issues from 306.97.

also for you guys using PrecisionX, check out the new "K-Boost" feature under voltage. it allows you to keep the card at constant voltage and max clock speeds. here is a very easy to follow guide on creating a couple of batch files so you can still use lower power state features when not gaming.
http://www.evga.com/forums/tm.aspx?m=1770296

this makes finding your boost clock very easy
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post #927 of 3357
Cool! I was planning on loading the new beta driver tonight ahead of my GW2 session to see if there are any improvements there.

Dunno how many of you are running GW2 but this game requires that I run a lower level of OC over anything else that I have. I can run a higher OC in Heaven (1280 core) and stay stable vs. GW2 (1267). I think there needs to be some massive optimization there as the game is pretty heavily CPU bound. Boo!
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Sequoia
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post #928 of 3357
Simple question for you guys: I would like to know how to figure out what's the highest Memory Clock offset that I can put on my Asus directcu ii gtx 670 2gb (non-top), without risking to shorten the card's life...

here's the deal: There is no way to measure the VRAM temp on the gtx 670 cards, therefore, how can we determine what is SAFE for us to run?
Because, even if a Memory offset might be very stable in Unigine heaven benchmarks (even after 20 runs), it doesn't mean that in the long run, we're not gonna hurt the VRAM...

I want my cards to last, so I'd like to hear what you guys think...
(I read about the guy who managed +600 mem offset stable, like 2 posts before this one... do you guys think that's a safe offset, or it could hurt the VRAM in the long run ??)
post #929 of 3357
Quote:
Originally Posted by jonathan1107 View Post

Simple question for you guys: I would like to know how to figure out what's the highest Memory Clock offset that I can put on my Asus directcu ii gtx 670 2gb (non-top), without risking to shorten the card's life...
here's the deal: There is no way to measure the VRAM temp on the gtx 670 cards, therefore, how can we determine what is SAFE for us to run?
Because, even if a Memory offset might be very stable in Unigine heaven benchmarks (even after 20 runs), it doesn't mean that in the long run, we're not gonna hurt the VRAM...
I want my cards to last, so I'd like to hear what you guys think...
(I read about the guy who managed +600 mem offset stable, like 2 posts before this one... do you guys think that's a safe offset, or it could hurt the VRAM in the long run ??)

somebody can correct me if this is wrong, but my thought is that any damage to the VRAM would happen by upping the voltage to an unacceptable level. with the Kepler cards we are locked at 1.175 volts and are just upping the speed of the ram and GPU. if you have ever overclocked a CPU you'll remember the heat problems you are watching for don't become a factor until you start upping the voltage.
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My System
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post #930 of 3357
Would like to hear what others think about this. (safe V-RAM speed for long-term usage for the gtx 670)

1 more thing: When using 2x gtx 670 in SLI that have 2 different Kepler Boost, must I attempt to adjust the clock offset so that both cards end up having the same Max Boost (kepler + cc) ???

or can I use the full kepler boost potential of my first card? (which is +140 k-boost whilst the other card's is +98...)
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