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[Official] NVIDIA GTX 780 Ti Owner's Club - Page 744

post #7431 of 16490
Quote:
Originally Posted by luches View Post

its ok. here you go : 80.1%

though i dont pay much attention to Asic score myself.

Thanks.I thought it would be around there.thumb.gif
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post #7432 of 16490
I'm very confused about the ASIC score. i remember reading somewhere that ASIC score doesn't matter when it comes to over clocking… my EVGA SC has a max of 1326mhz on core @ 1.212v and 115% power target with skyn3t bios (btw i forgot to thank you skyn3t team for being so brilliant) but my ASIC score is only 68.7%…. right now I'm running gaming stable 24/7 @ 1306 mhz on core and 3700 memory clock. temps max out @ 81 degrees after a few hours of playing.

does the ASIC score mean that my card will degrade much faster if i keep these clocks?
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post #7433 of 16490
What's the deal with the "increment of 13" that I find on the first page? When I overclocked, I did not use it and it seems to be running fine and the clock speeds reported by Precision X are not the ones listed in the table. However when I look at other people's OCs, they always match values in the table... for example, 1228 or 1346 core or whatever.

How important is that? I've heard that GPU boost uses increments of 13, but I am running skyn3t BIOS and afaik there's not GPU boost on that.
post #7434 of 16490
Quote:
Originally Posted by fredocini View Post

I'm very confused about the ASIC score. i remember reading somewhere that ASIC score doesn't matter when it comes to over clocking… my EVGA SC has a max of 1326mhz on core @ 1.212v and 115% power target with skyn3t bios (btw i forgot to thank you skyn3t team for being so brilliant) but my ASIC score is only 68.7%…. right now I'm running gaming stable 24/7 @ 1306 mhz on core and 3700 memory clock. temps max out @ 81 degrees after a few hours of playing.

does the ASIC score mean that my card will degrade much faster if i keep these clocks?

No, no, no!

Read my article on ASIC:

"ASIC score is more an indication for nvidia and amd and for us only a measure of leakage in our chips thanks to W1zzard from TechPowerup, its good to know the ASIC if youre going to run SLI because it want to have closely similar ASIC score on your cards because they will have similar voltages and you can clock/volt them together without having to go separate settings if you get big difference ASIC ( i.e: 60% - 80%)
@TSMC for nvidia and FAB1 for AMD, as the chips are removed from the waffer, tested and fused with the voltage is reflected on the leakage of every chip

Originally Posted by Dave Baumann Product manager AMD
"Actually, it does the opposite! We scale the voltage based on leakage, so the higher leakage parts use lower voltage and the lower leakage parts use a higher voltage - what this is does narrow the entire TDP range of the product. Everything is qualified at worst case anyway; all the TDP calcs and the fan settings are completed on the worst case for the product range"

A high leakage card operates at lower voltage to balance the otherwise higher power draw and temps. It will also overclock higher than what a low leakage card would. The problem is though, cards usually have a limit of voltage increase, i.e. say +150mV , which means AB could overvolt a 1.15V card to 1.3V, but a 1.1V card would crash above 1.25V.

A high leakage card is what you want if you do extreme OC, and you can keep the card cool (H20,LN2 etc.). Your mileage will vary of course, not all low VID cards are good OC cards, and not all high VID cards OC bad. It's a part of product binning, they try to fit in as many chips as possible to a similar ASIC spec.

From "the man" himself:

it's from the gpu silicon, and it's used to calculate the gpu voltage.

"bad" gpus get a higher voltage so they make the default clock. "good" gpus can do it with lower voltage

as you've seen in this thread, the scale for nvidia isnt perfect yet, so i'll apply some fixes once I have more data that suggests the typical ranges of gpu leakages

W1zzard - Techpowerup
"

Quote:
Originally Posted by iluvkfc View Post

What's the deal with the "increment of 13" that I find on the first page? When I overclocked, I did not use it and it seems to be running fine and the clock speeds reported by Precision X are not the ones listed in the table. However when I look at other people's OCs, they always match values in the table... for example, 1228 or 1346 core or whatever.

How important is that? I've heard that GPU boost uses increments of 13, but I am running skyn3t BIOS and afaik there's not GPU boost on that.


Boost uses the increments because they are set by a "clock generator" inside the GK110, only every 13mhz a "real clock" is set, its due to the way internal chips parts behave with different speeds (TMU's, ROP's etc...) Dont worry about it, just OC it as you do, its not because 13mhz that your OC is bad or youll get less FPS! thumb.gif


Cheers

Ed

(Team skyn3t)
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post #7435 of 16490
if you let the gpu boost 2.0 do the overclock till it hits a certain temp. for me i call it easy mode lol. how well of a clock speed could you get on a evga classified 780 ti with a custom water loop? i plan to do a dual 780 ti's in sli mode on my custom water loop build. it'll just be plain distilled water with 2 240mm rads and a 140mm one. the loop will just contain cpu and the 2 780 ti's

i been going through google but i cant seem to find anything for this question. all i find is most likely air cooled but no temps, or clock speeds. it just tells me "i got this fps on crysis 3 on uber graphis"
post #7436 of 16490
oc'ed the mem just a bit more... new 24/7 clocks for my 780 ti... does this score look correct?

Edited by fredocini - 2/13/14 at 10:53pm
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post #7437 of 16490
Quote:
Originally Posted by fredocini View Post

oc'ed the mem just a bit more... new 24/7 clocks for my 780 ti... does this score look correct?

Dude, that image, even when opened in a new window is too small or too low a resolution to make anything out
post #7438 of 16490
Quote:
Originally Posted by Jimhans1 View Post

Dude, that image, even when opened in a new window is too small or too low a resolution to make anything out
my bad... just edited the post. should be fine now. if its still too small when u click it, just clock on original in the new box that it opens on the bottom right

i also tried @ 1326 mhz and it finished a couple runs no artifacts or crashes... then tried for 1346 but it crashed... ill just stick with 1306 as the 1 fps difference doesnt matter lol
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post #7439 of 16490
Quote:
Originally Posted by fredocini View Post

my bad... just edited the post. should be fine now. if its still too small when u click it, just clock on original in the new box that it opens on the bottom right

i also tried @ 1326 mhz and it finished a couple runs no artifacts or crashes... then tried for 1346 but it crashed... ill just stick with 1306 as the 1 fps difference doesnt matter lol

First of all, using increments of 20mhz on the core is rather much.. Second, running a few runs of valley doesn't guarantee it to be safe for 24/7 usage. Most 'problems/crashes' occur when the heat builds up or when there are sudden spikes in the load/power draw. Looking at your graphs, temps were still rising when the bench ended. Try long run gaming for a change, then you'll really know what frequencies you can safely run 24/7 (or loop valley/heaven for that matter). Although that might differ from game to game.
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post #7440 of 16490
Quote:
Originally Posted by fredocini View Post

my bad... just edited the post. should be fine now. if its still too small when u click it, just clock on original in the new box that it opens on the bottom right

i also tried @ 1326 mhz and it finished a couple runs no artifacts or crashes... then tried for 1346 but it crashed... ill just stick with 1306 as the 1 fps difference doesnt matter lol

It is strange though...I ran valley at 1228mhz and no overclock to the mem and pulled 80fps in valley...So 81fps with your clocks seems low. hmmm....
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