Best Power Supply Calculator I've Seen

[RadeonX2]

I can't believe my system is pulling 455W

whats should I set in CPU Utilization, System Load and Capacitor aging?

I've set to default which is recommended in both utilization and system load, capacitor aging is 10% which resulted in 455w consumption

 

[elite.ire]

631 Watts for me

 

[alexp999]

There is no way an i7 and 9800GX2 needs 1091 W

 

[elite.ire]

i screwed up the calculator soz , fixed now

 

[Mussels]

How did this thread get re-awakened after so long?

damulta did it

 

[G@dn!q]

the only power calculator i trust is this one

http://bakkap.free.fr/Misc/wCalc.html

handy tool. the only problem is that it goes by whatever knowledge you have... AMD and intel dont exactly release accurate power consumption figures.

actually they are the same...

btw my 2900 pro 1G is a really freakin' power hungry monster! dammit!

 

[Mussels]

actually they are the same...

btw my 2900 pro 1G is a really freakin' power hungry monster! dammit!

they're different, cause mine does CPU only and doesnt have all the other crap its all guesswork, the calculator this thread is about has been out by nearly 200W on one of my systems (claimed 700W load, in reality it was 530W in furmark and 400W when normal gaming)

 

[t_ski]

The Extreme Outer Vision calculator will assume full load on all components. Real life circumstances will never see full load all the time.

 

[angelkiller]

I think that the result you get is what kind of PSU to get, not how much your system draws. It says "Recommended PSU Wattage". Not "System Power Draw".

I wonder how accurate the CPU OC power estimator is. Theres no way a E8400 draws 118W when OCed to 4.3GHz @ 1.35v. The thing loads at ~30W at stock speeds. Upping the voltage by 13% does not quadruple the power consumption.

4.3GHz E8400 + 4830 CF gets 346W. Admittedly, that seems awfully low for a PSU recommendation. But on some of you guys systems, there's no way you system draws that much.

 

[Kursah]

No but it doesn't hurt to have a buffer imo, I always try to get a PSU that's got at least a 100W buffer between what I hope to be the max my OC'd rig will use and it's rated specs, that way it's less stressed, keeps in it's efficiency range, and these newer PSU's with 80+ efficiencies add to that. Keeps the PSU cooler, keeps the voltage solid, and upgrades realistic along with decent overclocks without having to worry about a PSU blowing up or a cap leaking it's contents (i've dealt with that b4).

As-far-as PSU estimators, it's kind of handy, but definatley not accurate, but even if it overguestimates, I'd rather it do that then underguestimate imo.

 

[angelkiller]

I wasn't saying that overestimation is bad. I was trying to point out that that it doesn't give actual power consumption. The calculator overestimates so it gives you what kind of PSU to look for. It just seems like some people think that that's how much their PSU draws. Overestimation is good.

 

[trt740]

wow!!! what a great tool this needs a stick my system only needs 480 watts

 

[Kursah]

I think it's kind of hard for the estimator to be very accurate, but I think if there was enough fundings, donations and kill-a-watt users out there, a more accurate estimator could be created. If someone thinks this estimator is accurate, more power to them because they'll be purchasing a more powerful PSU that will take care of their needs at a lower load. If you want accurate, imo the closest most will come to is the kill-a-watt device, pretty cool, but I forget what it costs anymore. I've never really worried about what my PC consumes since electric is part of my set rent, but someday it will matter I'm sure.

 

[trt740]

I think it's kind of hard for the estimator to be very accurate, but I think if there was enough fundings, donations and kill-a-watt users out there, a more accurate estimator could be created. If someone thinks this estimator is accurate, more power to them because they'll be purchasing a more powerful PSU that will take care of their needs at a lower load. If you want accurate, imo the closest most will come to is the kill-a-watt device, pretty cool, but I forget what it costs anymore. I've never really worried about what my PC consumes since electric is part of my set rent, but someday it will matter I'm sure.

from my experience with all kinds of components in my computer this looks about right.

 

[mlee49]

The Wish it could show 3x SLI or CF. Very accurate calculator, nothing like Newegg's Wattage Calculator.

 

[angelkiller]

nothing like Newegg's Wattage Calculator.

Oh god that horrible. All the GPUs are pre ATI 3 series. Apparently a Core 2 Duo, a 2900 series, 2GB DDR2, and a 3.5in 7200 drive needs 780W!!

 

[mlee49]

I know, four 8800GTX's need a 1.8KW psu.

 

[Nick89]

I used my Kill-A-watt to see my PCs actual full load Watt usage and it was 425W. This thing estimated 417W, I would say its pretty good.

To get full load I ran OCCT Stressing CPU and Furmark stressing GPU at the same time. With the CPU at 100% load and my GPU at no load my system sucked up 289W, With the GPU at full load it sucked up 425-431W. I like my Kill-A-Watt. =]

 

[Mussels]

I wasn't saying that overestimation is bad. I was trying to point out that that it doesn't give actual power consumption. The calculator overestimates so it gives you what kind of PSU to look for. It just seems like some people think that that's how much their PSU draws. Overestimation is good.

when it tells you it needs 750W and you're running the PC stable on a 600W PSU... the tools crap

It tells you what kind of generic, cheap PSU with 60% efficiency you'll need.

 

[t_ski]

Extreme Outer Vision knows that this is not the 'end all, be all" of calculators. That's why they have a Pro version that takes Amperage into consideration as well. From my experience the Pro is more accurate, and I bought my last 2 psu's off the amperage ratings, not the wattage ratings.

Last time I checked, it was only $1.99 USD for lifetime access.

 

[cdawall]

it tells me i need a 700w PSU for quadfire i like that idea

 

[A Cheese Danish]

533W for me

 

[Pickles Von Brine]

447 (when at max everything)
402 (when CPU is at max)

 

[phatkat]

How did this thread get re-awakened after so long?

#1 result @ Google for something related to PSU Calculator. (Sorry can't remember exact query)

Anyway I'm glad since this is a great community and I'm glad I found it.