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[Official] NVIDIA GTX 660TI Owners club - Page 226

post #2251 of 3662
Quote:
Originally Posted by keychain View Post

I am buying 660 Ti soon, it would be better to ask experienced people on which brand to look for... Asus, Msi, anything else? Which card is better in terms of cooling, silent operation and performance etc

Get a MSI GTX 660 Ti Power Edtion, best one by far.

It's great at every single one of those categories and it shouldn't be too hard to overclock it to match a GTX 670.

Well I might be a little biased. tongue.gif
Edited by StayFrosty - 5/20/13 at 8:22pm
post #2252 of 3662
Quote:
Originally Posted by StayFrosty View Post

Get a MSI GTX 660 Ti Power Edtion, best one by far.

It's great at every single one of those categories and it shouldn't be too hard to overclock it to match a GTX 670.

Well I might be a little biased. tongue.gif
You and half the club XD
post #2253 of 3662
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post #2254 of 3662
Quote:
Originally Posted by malmental View Post

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post #2255 of 3662
Quote:
Originally Posted by malmental View Post

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post #2256 of 3662
Hi ppl - long time no see smile.gif

Anyway I just wanted to add some new observations to Power Edition/Lightning voltage monitoring.

One of my friends from polish forums posted a chart lately which should be considered by many of us when adding voltages to 660Ti PE or PE OC Edition.

Voltages on Ligtning 680 measured with multimeter showed, that adding +50Mv does NOT result in 1.175 + 50 Mv. Voltage is scaling much more differently

And so this probably applies also to Power Edition.

Adding +50Mv resulted in almost 1,29v!!! This should be considered when overclocking high. And that would explain why I was able to clock my GPU to 1400 MHz on Core when added +100Mv (which is much higher than 1,3v, not 1,275 as I thought till now) and why the GPU was struggling to stay under 69 degrees.

I hope that some more tests will be made in this matter. Anyway - considering it be careful when OCing. In both 2.2.3 AB and newest BETA You can raise voltage for PE cards but the voltage won't show in GPU-z or MSI AB (and You all already know that). What You and I didn't know until now is the fact, that real voltage pushed into this card is higher than we thought it is. I'm still waiting for some more official tests to confirm that.

Anyway, my latest good for 24/7 OC is only +30Mv and +62 on core and +550 memory which results in astonishing 1280 MHz on core and 7100 MHz on memory and temps never go above 63 degrees with fan going at 58% MAX.

This is cool smile.gif

I also managed to get some cool score in 3dmark13 with some different OC

5.950 pkt. - GTX 660Ti @ 1320MHz @ 3650 MHz - Core i5 3570K @ 4.5 GHz http://www.3dmark.com/fs/400213

I know it's not high score when comparing to AMD but AMD has much better optimized drivers for this benchmark. Anyway this score let me beat graphic score of stock GTX 680 (actually two different owners) on PL forum smile.gif
Edited by Mephic - 5/21/13 at 2:12am
post #2257 of 3662
I've never had any problems with temperatures on my 2 power editions and I've always maxed the power target and core sliders... My max overclock is around +162 on core, +575 mem.
post #2258 of 3662
Quote:
Originally Posted by Mephic View Post

Hi ppl - long time no see smile.gif

Anyway I just wanted to add some new observations to Power Edition/Lightning voltage monitoring.

One of my friends from polish forums posted a chart lately which should be considered by many of us when adding voltages to 660Ti PE or PE OC Edition.

Voltages on Ligtning 680 measured with multimeter showed, that adding +50Mv does NOT result in 1.175 + 50 Mv. Voltage is scaling much more differently

And so this probably applies also to Power Edition.

Adding +50Mv resulted in almost 1,29v!!! This should be considered when overclocking high. And that would explain why I was able to clock my GPU to 1400 MHz on Core when added +100Mv (which is much higher than 1,3v, not 1,275 as I thought till now) and why the GPU was struggling to stay under 69 degrees.

I hope that some more tests will be made in this matter. Anyway - considering it be careful when OCing. In both 2.2.3 AB and newest BETA You can raise voltage for PE cards but the voltage won't show in GPU-z or MSI AB (and You all already know that). What You and I didn't know until now is the fact, that real voltage pushed into this card is higher than we thought it is. I'm still waiting for some more official tests to confirm that.

Anyway, my latest good for 24/7 OC is only +30Mv and +62 on core and +550 memory which results in astonishing 1280 MHz on core and 7100 MHz on memory and temps never go above 63 degrees with fan going at 58% MAX.

This is cool smile.gif

I also managed to get some cool score in 3dmark13 with some different OC

5.950 pkt. - GTX 660Ti @ 1320MHz @ 3650 MHz - Core i5 3570K @ 4.5 GHz http://www.3dmark.com/fs/400213

I know it's not high score when comparing to AMD but AMD has much better optimized drivers for this benchmark. Anyway this score let me beat graphic score of stock GTX 680 (actually two different owners) on PL forum smile.gif
While I knew the slider was not linear , didn't know it was that far off . It was posted over in the 670PE forum the voltage at 100mv was well over 1.3v with DMM , think it was 1.32 or something , this was a 670 PE .
It would of been interesting if he tested first with 0 voltage and checked each few steps , like 0, 20, 40 ,60 etc .

You can kind of get the idea watching the TDP while raising each step of voltage , but i didn't think 50mv would of been that high (was thinking in the 1.24-1.25 range )
Edited by Edkiefer - 5/21/13 at 7:26am
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post #2259 of 3662
Well... In my case as I mentioned before power target doesn't work as intended. It always throttles the card at around 103-104% even when I set it to 114 (it never got there).

So either it means TDP % is not reporting correctly or power target works bad. frown.gif
post #2260 of 3662
Quote:
Originally Posted by Mephic View Post

Well... In my case as I mentioned before power target doesn't work as intended. It always throttles the card at around 103-104% even when I set it to 114 (it never got there).

So either it means TDP % is not reporting correctly or power target works bad. frown.gif
I run my test BM, either Heven or Valley at windowed 1024x768 that way I never hit TDP limit (only goes to like 80% stock voltage and around 90 with 100mv but i never run it like that as way to much IMO .

I only run mine with 20mv+ on slider just to keep 1241 solid in everything . I can run it more than that 1267-1280) but it not worth it IMO .
with 10mv I crash at 1280 in valley .
Edited by Edkiefer - 5/21/13 at 9:38am
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WD Black WD5002AALX 500GB 7200 RPM 32MB Cache ... Samsung 850evo 500GB SATA 6.0Gb/s CM Hyper 212evo Win7 64bit Pro SP1 
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WD Black WD5002AALX 500GB 7200 RPM 32MB Cache ... Samsung 850evo 500GB SATA 6.0Gb/s CM Hyper 212evo Win7 64bit Pro SP1 
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