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[OFFICIAL] GTX 670 Overclocking - Page 37

post #361 of 1562
Quote:
Originally Posted by samwiches View Post

+100/90 for 46FPS in Heaven seems just bad enough for it to make sense to me. I really have to try more.. can't believe some people get four times the memory boost that I do.

This may just become my new mantra but double check that your card is seated correctly. Also try another slot as well. I know that you have a Gen3 mobo but if you have time, see if you can rule out other factors. This won't affect your OC ability but it may affect your base performance. I know I was about to give up on my card before I changed slots.
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post #362 of 1562
Quote:
Originally Posted by samwiches View Post

+100/90 for 46FPS in Heaven seems just bad enough for it to make sense to me. I really have to try more.. can't believe some people get four times the memory boost that I do.
I don't know what you mean. It goes to 111% at the far right.

look at the pic of the red precision that you quoted further up the page its at 112% and the slider is only halfway redface.gif
post #363 of 1562
I pushed the GPU CLOCK by +12 and got about a .3 FPS boost... I cap at about 69 degrees too, is it worth going any higher?

456

396
Edited by Lirik - 5/30/12 at 8:26am
    
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post #364 of 1562
+500 is a pretty high memory increase. If going too high actually does produce errors/checking and reduce performance, then you can keep pushing until your score drops.
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post #365 of 1562
it depends how big do your want your Epenis to be wink.gif
post #366 of 1562
Cards with 6+8pin have the power usage % calibrated to 300W TDP, whereas those with 6+6 pin are calibrated to 225W TDP.

This means 6+6 cards will show a significantly higher Power Usage % doing the same load as a 6+8 (i.e. Gigabyte) card.

This is also why the power limit % slider on the 6+6pin cards goes higher (128% vs 111% on the GB cards). Overall the actual power limit on the 6+8 pin card is quite a bit higher (288W vs 333W). However because voltage cannot be unlocked, this is basically useless.

AFA mem vs. core clock goes, I've found that if you are at or very close to your max stable core clock, it can compromise your memory OC'ing ability pretty substantially. Like, at various points, I've found the following stable OC's:

1345c/3225m
1337c/3499m

Although generally speaking core clocks are more important than memory clocks, there are limits to that idea (e.g. the second OC above is going to be consistently faster than the first, overall, because I give up a TON of memory speed just to get a tiny bit of extra core speed).

Also, there are definitely certain testing scenarios where the memory clock will take on added importance.

How important the memory OC is depends on the degree to which memory bandwidth is a limiting factor to performance on that particular test, at the particular settings (including res) you're running it at.
Edited by brettjv - 5/30/12 at 9:04am
    
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post #367 of 1562
Quote:
Originally Posted by Lirik View Post

I pushed the GPU CLOCK by +12 and got about a .3 FPS boost... I cap at about 69 degrees too, is it worth going any higher?

Your FPS doesnt look quite right, my vanilla EVGA is running at a much lower core/memory (1230/3200) and I can get 49.5 ish, try maxing your power cap %, there is no reason not to, the FTW has really good cooling+ caps according to EVGA.
post #368 of 1562
Quote:
Originally Posted by zerocraft View Post

Your FPS doesnt look quite right, my vanilla EVGA is running at a much lower core/memory and I can get 49.5 ish, try maxing your power cap %, there is no reason not to, the FTW has really good cooling+ caps according to EVGA.

Will that really do anything? I was monitoring the power graph and it hits only about 103% power o_O.


Also, is it safe to leave it at 142% power the whole time?
    
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post #369 of 1562
Quote:
Originally Posted by brettjv View Post

Cards with 6+8pin have the power usage % calibrated to 300W TDP, whereas those with 6+6 pin are calibrated to 225W TDP.
This means 6+6 cards will show a significantly higher Power Usage % doing the same load as a 6+8 (i.e. Gigabyte) card.
This is also why the power limit % slider on the 6+6pin cards goes higher (128% vs 111% on the GB cards). Overall the actual power limit on the 6+8 pin card is quite a bit higher (288W vs 333W). However because voltage cannot be unlocked, this is basically useless.

ah cheers mate, cleared it up a fair bit for me wink.gif
post #370 of 1562
Quote:
Originally Posted by Lirik View Post

Will that really do anything? I was monitoring the power graph and it hits only about 103% power o_O.
Also, is it safe to leave it at 142% power the whole time?

Is it safe ? Yes, all this will do is allow your card to use more wattage if it wants to, and the FTW card's bigger caps 'should' allow it to (its using a 680GTX reference PCB). You can't do any damage because voltage wise you are still hard capped by nvidia at 1.175v.

As for why you are only hitting 103%, I am not sure, my card stays at 120% at load most of the time. If I lower the cap my FPS will drop and my boosted clock fluctuates more between 1150 and the maxed 1230. It could be linked to your temps, lower your memory to 0 and see how far you can push that core clock with 145% power, no crashes or artifacts in heaven. I have seen throttling on my card in the 70-73 degree range, but I have really good airflow so I rarely go above 65 under load. Make sure you max out your fans while benchmarking, this should help prevent throttling too, but for long term use you want to set up the fan curve so that it only maxes the fans once you go above 60degrees
Edited by zerocraft - 5/30/12 at 8:58am
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