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GTX 780 Overclocking

M

Mr. Stryker

Supreme [H]ardness
Joined
Mar 15, 2005
Messages
5,220
I'm not having much luck with pushing further than +170 on stock voltages, or even with the maxed out voltage (1.212mV) and the fan is at 100% (get 55c at peak with +170/+200 on the core/memory. The boost is 1167MHz on the core and memory at 3200Mhz at 80-100% GPU usage while playing BF3 at 2560x1600.

My question is why can't I go further than +170 without getting crashes even if I maxed out the voltage? And the temperatures aren't even breaking more than 60°C? Am I missing something? Yes, I put the power target to the max already. What gives? Is this hitting the wall?
 
Is there something that I'm missing? I only wanted to see a nice 1200Mhz boost clock, lol. Then I would be one happy panda.
 
1200 is pretty good. It's the luck of the draw, you may not be able to go higher.
 
Mine only does 1176 max boost core clock without crashing. Reference cards aren't going to be the best clockers out there. Evga classified or MSI lightning would be more likely to get you 1200+ as they are binned. Everybody says evga doesn't bin but I call bs. Has multiple ftw cards that boosted insanely. And why would they have the ftw le cards for cheaper if they weren't lower binned. Wish they had zotac amp 780s I had an amp 670 that boosted to 1290+ stock boost. A water block would probably get your card to around 1200. But that's still not guaranteed.
 
Doesn't matter with a decent water loop they'll be under 50°C. Also have u checked the sensor tab in gpuz to make sure your voltage is actually changing. Mine only goes to 1.2v not 1.212v or whatever. Mine acts weird with +175 and not tweaking voltage or power target I get like 1150 something but with +175 and power target and voltage tweaked I get 1189. Very weird but I only get 1137 stable without voltage tweak and 1176 with voltage tweaked and the core offset is +150 without voltage giving me 1137 and only +165 with voltage giving me 1176, so voltage does do something and not just change voltage. Guess its gpu boost 2.0. Maybe try increasing voltage and power target then increasing incrementally. I believe cranking your fan to 100% will make your power usage go up significantly as well so getting a good balance may help your overclock. Mine runs around 65-70% with a 70-75°C max load.
 
My card has an ASIC quality of 71% if that means anything. I'll run GPU-Z now to monitor the volts.
 
Mr. Stryker said:
Is there something that I'm missing? I only wanted to see a nice 1200Mhz boost clock, lol. Then I would be one happy panda.
Click to expand...

You need to lower your expectations. I have used quite a few GTX 780s and NONE of them have hit 1200 (or 1202, more precisely) boost. Maybe they will for a suicide benchmark run, but not 24/7 stability. The stock boost is 900. Not many cards will get 300mhz above that - what i've found is that quite a few cards will do between 1000-1100. Getting above that is completely luck based. Besides which, you're talking about a .5 fps difference from 1100 to 1200...who cares....

Don't read too much into overclocking reviews found on the web. Keep in mind that these reviewers are sent golden cards by manufacturers and are not representative of what a user bought card will achieve....I can't tell you how many card brands I've bought based on overclocking reviews, only to get SUBSTANTIALLY worse overclocks. Don't read into it. A user bought card will not be a reviewer golden sample, period - so if reviewers are getting 1200, don't count on your card getting 1200. Maybe it will, maybe it won't, but in the end it is meaningless because the FPS difference for +50mhz is nearly nothing.

If you really want a good shot at 1200+, you'll want a card with an improved PCB such as the classified, lightning and Asus DC2. The probability percentage of getting a super high OC will be better on those cards, on average.
 
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The overclock is limited by 3 parameters : voltage limit (in my case, I can't get passed 1,87v), power limit (106%) and temp limit. So if any of those limits is reached, the overclock can't go higher. MSI afterburnet has graphs that shows which is the limiting factor for a particular OC. The only way over is with a modded BIOS. Not my Cup of tea.
 
I haven't used it my self yet, but I have heard that people are getting good results with the Tech Inferno BIOS. I believe it removes the boost, so the cards frequency doesn't fluctuate.
 
It does go to 1.2v but doesn't always stay there as the core clock changes during gaming..
 
Tych-0 said:
I haven't used it my self yet, but I have heard that people are getting good results with the Tech Inferno BIOS. I believe it removes the boost, so the cards frequency doesn't fluctuate.
Click to expand...

Doesn't EVGA Precision X have the EVGA K-BOOST feature where it forces the 3D clocks to stay there?
 
xoleras said:
You need to lower your expectations. I have used quite a few GTX 780s and NONE of them have hit 1200 (or 1202, more precisely) boost.

just because YOU haven't doesnt mean others havent.


Besides which, you're talking about a .5 fps difference from 1100 to 1200...who cares....

well, not .5 fps, but yeah it wont matter too much if the OP wants to get from 1170-1200.



If you really want a good shot at 1200+, you'll want a card with an improved PCB such as the classified, lightning and Asus DC2. The probability percentage of getting a super high OC will be better on those cards, on average.

Even with those cards, its usually just luck. I can get about 1242mhz stable from my reference galaxy 780. +210 core.
Click to expand...

OP, i've seen people with much lower clocks than yours, be happy! :cool:
 
It seems to be stable at 1189 boost clock with maxed out voltage +38mV. Which is 1.212v or so?

3239 Valley score at 2560x1440 with the stock settings. I'm enjoying the fact that I almost *never* dip under 100 FPS with BF3 on medium settings with 60+ players.
 
Im over 1200 on a reference galaxy 780 with the modded tech inferno bios...wish I could bump the voltage more, gpu doesnt go above 40C with my loop...8/
 
What's this Tech Inferno bios that I've been hearing about? It sounds like it'd void the warranty.
 
I don't see why anyone would need to void their warrantee with the bios mod. The max temp I see is 75°C with 65% fan after hours of gaming (temp throttling doesn't kick in till 80°C + u can crank that to 96°C in afterburner) and max power usage I've seen in any test 3dmark11, vantage, crysis 3, bf3, borderlands 2, skyrim, the witcher 2 was 98% and that's with my max overclock. Usually I'm around 85-90%, 98% is after hours of gaming and benchmarking and its the absolute maximum reported at the top of the monitoring graph in afterburner My boost clock never budges. Some simple informed tweaking gets u the same result and u keep your warrantee.
 
That thread linked by Hamateer doesn't show instructions on how to do this safely, if it works on Galaxy reference cards, etc, etc. I still feel leery from doing this unless proper instructions were provided. But my card works fine and I'm not sure if I should bother tampering it any further...
 
Mr. Stryker said:
That thread linked by Hamateer doesn't show instructions on how to do this safely, if it works on Galaxy reference cards, etc, etc. I still feel leery from doing this unless proper instructions were provided. But my card works fine and I'm not sure if I should bother tampering it any further...
Click to expand...

I wouldnt I fried a 680 putting a 1.21v bios on it. ran perfect with the bios and with the original bios but when i flashed back to original bios it artifact like crazy. not me being an idiot and screwing up ive done like 3 other 670s. but gpu boost 1.0 was more of a bitch to screw around with when overclocking. I see no need to flash at all with gpu boost 2.0. Maybe if you had a voltage locked card. Even then your talking like a 50mhz gain at most with the extra voltage.
 
Thought so, thanks. I kind of like the 1189 and am okay with it being 11 off from the awesome 1200. :p

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