Help with overclocking 780 ACX SC.

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colpipe

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Oct 30, 2013
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Hey i keep feeling that my 780 isn't getting the performance it should give. So i'm trying to overclock it and i'm ok with noise and heat, because i have good airflow. Here is a few more things:
I have an i5-4670k
8gb of 2133
780 ACX cooling, super clocked
MSI gd-65 gaming MB

What should i use to overclock, how to, max amount with max performance, and any thing else needed. If you think there are in errors with my parts, (incompatibility, bottle necking, etc.) please say so.

Thanks anyone who helps, its greatly appreciated.
 
Solution
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Obviously, there are variances with hardware as not all chips are able to hit the same clocks, but generally speaking, unless you got a really bad card, you should be able to hit at least ~1050mhz on the core and at least 1600 (6.4GHz effective) on memory with stock voltage on an EVGA 780 SC. If you use EVGA precision, you can also bump up the voltage to try and get a higher overclock. My 780 SC can hit about 1210 core and 7.1GHz memory on +38mv. There's no guarantee your card can hit the same clocks as others, so you'll have to do the work yourself to find your card's limit. Just remember that there's really no harm you can do with EVGA Precision since these cards are voltage locked to no more than 1.2V (+38mv) on stock BIOS, so as...
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doubletake

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Sep 30, 2012
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Obviously, there are variances with hardware as not all chips are able to hit the same clocks, but generally speaking, unless you got a really bad card, you should be able to hit at least ~1050mhz on the core and at least 1600 (6.4GHz effective) on memory with stock voltage on an EVGA 780 SC. If you use EVGA precision, you can also bump up the voltage to try and get a higher overclock. My 780 SC can hit about 1210 core and 7.1GHz memory on +38mv. There's no guarantee your card can hit the same clocks as others, so you'll have to do the work yourself to find your card's limit. Just remember that there's really no harm you can do with EVGA Precision since these cards are voltage locked to no more than 1.2V (+38mv) on stock BIOS, so as long as temperatures are kept in check (try to stay under high 70s), you can safely try and adjust your voltage + frequencies until you hit the max you can do without crashing.

-Edit-

I forgot to mention the specifics
When you're using the program, remember that the clock offset you set will be just for the base speed, the card will still boost up to a higher speed if temperatures and power consumption are ok, so for example, if you set your clock offset to +137, you'll end up with a base clock of 1000 + a boost clock of something like 1200. If you want to see what your frequencies are currently at (since the Precision interface isn't the best), run GPU-z alongside it so you can monitor what your clock/memory frequencies are hitting.
For the memory, you'll want to first run it no more than about +185 or so (1595 clock), which will give you ~6.4GHz memory, and then work your way up from there. Remember that you may or may not be able to hit 7GHz (1750mhz) like everyone else with the memory, so take it easy on this overclock until you start to get visual artifacts in games/benchmarks.
 
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bdiddytampa

bdiddytampa

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Dec 2, 2012
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The software that EVGA provides would be your best bet, and the new NVidia cards can do an auto OC, you just set the max temp and power and it'll do it for you. Your other option with the same software is to just raise the clock speed bit by bit and stress test after each one (EVGA has a stress test themselves that will log artifacts) until it is unstable or you don't like the results then drop back to the last setting.

EVGA Precision X
EVGA OC Scanner X

The rest of your system is solid :)
 
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doubletake

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Yeah, just do make sure to understand that if you ever get things like visual artifacts (texture corruption, irregular geometry, etc) or system lock-ups, the overclock isn't stable and you might want to experiment with lower clock offset or increase the voltage (assuming you aren't already at max). It'll probably take more than a day before you can be reasonably sure that your OC is stable since not all games stress the card equally. An overclock can be completely stable in one game, yet crash each and every single time in another.
 
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