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GTX 560 Ti 448 core OC Club - Page 186

post #1851 of 2759
Quote:
Originally Posted by Selquist979 View Post

Quick question for the 448 owners out there. my EVGA Classified Ultra is coming tomorrow and want to make sure that my PSU is up to snuff. http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022 its has 2 12v rails which confuses me. does it mean that there is 50amps total?. If so awesome, if not I guess OC'ing this card is out of the question till I find a better PSU.

I'll let someone else answer your question specifically but any 500w PSU (that is built decently [check reviews on jonnyguru/hardwaresecrets/etc]) should handle almost any singlecard system out there.

I say yes without even calculating rails.
post #1852 of 2759
Quote:
Originally Posted by FlashFir View Post

I'll let someone else answer your question specifically but any 500w PSU (that is built decently [check reviews on jonnyguru/hardwaresecrets/etc]) should handle almost any singlecard system out there.
I say yes without even calculating rails.

It will work just fine.
post #1853 of 2759
Thanks!
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post #1854 of 2759
Quote:
Originally Posted by Selquist979 View Post

Quick question for the 448 owners out there. my EVGA Classified Ultra is coming tomorrow and want to make sure that my PSU is up to snuff. http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022 its has 2 12v rails which confuses me. does it mean that there is 50amps total?. If so awesome, if not I guess OC'ing this card is out of the question till I find a better PSU.

Should not be a problem. Now, if you plan on getting another one later. I would get a 750 ish psu. Let us know what kind of numbers you get with the thing.
post #1855 of 2759
Quote:
Originally Posted by selluminis View Post

Should not be a problem. Now, if you plan on getting another one later. I would get a 750 ish psu. Let us know what kind of numbers you get with the thing.

He doesn't need 750 watts.

I think a 700 watt psu will be enough, if you go any higher, itll just be to on the extreme safe side. On most review sites, they reported MAX power consumption as around 250 for one card. 250/12v = ~21 amps per card. So MAX power consumption for 2 cards would be ~42 amps . Average power consumption is ~190watts load. 190/12v= ~16 amps average power consumption per card. SLI'ed, both cards would consume around 32 amps of power.

So, on paper at least, any psu with 55+ amps on the 12v rails would be very sufficient for sli'ed 448s plus a moderate power consumption cpu, suck as a stock 2500k, which consumes around ~140watts load, (140/12= ~11 amps on the 12 v rail) or ~200watts overclocked(200/12= ~17 amps)

So MAX amp on an overclocked system(cpu only) with SLI 448s = (21*2)+17~59 amps on the 12 v rails. If you have a 700 watt system that supplies a CONTINUOUS 55+amps on 12v rails, you should be fine as it would likely be able to go over the rated ampage for short periods(considering you have a quality psu)

Average amp on an overclocked system(cpu only) with SLI'ed 448s = (16*2)+17=49 amps on 12v rails

So IMOHP, any quality 700 watt psu should do the trick.


added onto the ending line, Any quaility 700watt psu with 55+ amps of continuous power on the 12v rails should do the trick
post #1856 of 2759
Quote:
Originally Posted by wardoc22 View Post

He doesn't need 750 watts.
I think a 700 watt psu will be enough, if you go any higher, itll just be to on the extreme safe side. On most review sites, they reported MAX power consumption as around 250 for one card. 250/12v = ~21 amps per card. So MAX power consumption for 2 cards would be ~42 amps . Average power consumption is ~190watts load. 190/12v= ~16 amps average power consumption per card. SLI'ed, both cards would consume around 32 amps of power.
So, on paper at least, any psu with 55+ amps on the 12v rails would be very sufficient for sli'ed 448s plus a moderate power consumption cpu, suck as a stock 2500k, which consumes around ~140watts load, (140/12= ~11 amps on the 12 v rail) or ~200watts overclocked(200/12= ~17 amps)
So MAX amp on an overclocked system(cpu only) with SLI 448s = (21*2)+17~59 amps on the 12 v rails. If you have a 700 watt system that supplies a CONTINUOUS 55+amps on 12v rails, you should be fine as it would likely be able to go over the rated ampage for short periods(considering you have a quality psu)
Average amp on an overclocked system(cpu only) with SLI'ed 448s = (16*2)+17=49 amps on 12v rails
So IMOHP, any quality 700 watt psu should do the trick.

added onto the ending line, Any quaility 700watt psu with 55+ amps of continuous power on the 12v rails should do the trick

They usually come in 550, 650, and 750. I have not seen a whole lot of 700 watt PSUs out there. Why do you hate having extra power, LOL? More power will give the builder more headroom in the long run. It really does not matter. Anything with a good amp rating on the 12 volt rail should do the trick above 600 watt range.

I swear Wardoc, you really have it out for higher out put psu's.... LOL.... tongue.gif
post #1857 of 2759
Some new DX11 benchmark scores.


1280x800

ComputeMarkscore.jpg

1024x600

computemark1024by600.jpg


Benchmark if somebody wants to try it.


http://www.computemark.com/cm.php?show=download
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post #1858 of 2759
Quote:
Originally Posted by wardoc22 View Post

He doesn't need 750 watts.
I think a 700 watt psu will be enough, if you go any higher, itll just be to on the extreme safe side. On most review sites, they reported MAX power consumption as around 250 for one card. 250/12v = ~21 amps per card. So MAX power consumption for 2 cards would be ~42 amps . Average power consumption is ~190watts load. 190/12v= ~16 amps average power consumption per card. SLI'ed, both cards would consume around 32 amps of power.
So, on paper at least, any psu with 55+ amps on the 12v rails would be very sufficient for sli'ed 448s plus a moderate power consumption cpu, suck as a stock 2500k, which consumes around ~140watts load, (140/12= ~11 amps on the 12 v rail) or ~200watts overclocked(200/12= ~17 amps)
So MAX amp on an overclocked system(cpu only) with SLI 448s = (21*2)+17~59 amps on the 12 v rails. If you have a 700 watt system that supplies a CONTINUOUS 55+amps on 12v rails, you should be fine as it would likely be able to go over the rated ampage for short periods(considering you have a quality psu)
Average amp on an overclocked system(cpu only) with SLI'ed 448s = (16*2)+17=49 amps on 12v rails
So IMOHP, any quality 700 watt psu should do the trick.

added onto the ending line, Any quaility 700watt psu with 55+ amps of continuous power on the 12v rails should do the trick

You're kind of forgetting the whole part that you're supposed to run your PSU at about 80% capacity to get the best efficiency/lifespan out of it.
So if you're going to be pulling 49A on your 12v rail, you really want a psu that can deliver ~62A continuous on the 12v rail, so that you don't cause premature capacitor wearout/aging.

Also most PSU's simply tend to be more efficient/perform better at ~80% load.

I was running a Corsair 950TX psu with my two card SLI and my cpu at 5ghz. Adding a third card I went up to 1250W.
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post #1859 of 2759
Quote:
Originally Posted by selluminis View Post

They usually come in 550, 650, and 750. I have not seen a whole lot of 700 watt PSUs out there. Why do you hate having extra power, LOL? More power will give the builder more headroom in the long run. It really does not matter. Anything with a good amp rating on the 12 volt rail should do the trick above 600 watt range.
I swear Wardoc, you really have it out for higher out put psu's.... LOL.... tongue.gif

No, I's just that when I read your post, I read it in a way that sounds like he needs a 750watt psu or his computer will explode.
post #1860 of 2759
Quote:
Originally Posted by SonDa5 View Post

Some new DX11 benchmark scores.

Benchmark if somebody wants to try it.
http://www.computemark.com/cm.php?show=download

Tried it, only works with one GPU and fullscreen mode gave me a score of 338k. Program is a bit bugged, lol.
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