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Seasonic or Corsair Purchase: 1000w Platinum, 1250w Gold or 1200w Gold

post #1 of 35
Thread Starter 
I've been running my 850w Cooler Master Real Power Pro for about 5 years now, and I'm looking to upgrade and want a PSU to carry me another 5 years if possible. Fortunately CPUs and GPUs have undergone substantial die shrinks the last 5 years resulting in a decrease in power. But I want to make my PSU purchase as future proof as possible. So I'm deciding on a Seasonic, but am having a hard time deciding on the 1000w Platinum or the 1250w gold.

The 1000w Platinum received the best review I've seen yet at jonnyguru:
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=264
Quote:
Now, this unit did have some trouble hitting Platinum on my load testing gear. This could be because I don't work to stabilize incoming line voltage on purpose, but it really doesn't matter. When you take into account the error tolerance of my power meter, it does pass Platinum.
Quote:
so... how do we score something clearly designed by wizards to completely wipe out the competition? Easy. I'll take away points as usual. From a perfect score, I find myself having to take away half a point for ripple suppression. It was real good, but not the best ever. But... I have never seen a unit average better than 0.5% regulation, either. I'm going to do something I rarely do. I'm going to put that half point back on. This is as close to the perfect power supply we're going to get, people. 10
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151105

imageview.php?image=34286

........................................................................................................................................................................................

The 1250w Gold faires well in tests, but sometimes was only on par with Silver rating (note review is of XFX 1250w Gold, which is the Seasonic 1250w Gold rebrand):
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=273
Quote:
Finally, after removing three more screws, I can separate the rest of the housing from the PCB. And there we have our Seasonic X-Series based power supply in all its glory.
Quote:
Perfect voltage regulation? Check. Survived crossloads? Check. Decent ripple suppression? Check. Rise time within spec and minimal overshoot? Check. Efficient? Yes, but NOT 80 Plus Gold. I'm giving this unit a performance score of 9.5

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151109

2474f08b41253549.jpg

The question is, will the 250w extra provided by the Gold unit be worth it over the similarly priced 1000w Platinum unit?

And feel free to point me in a completely different direction if you want. Thanks all!

........................................................................................................................................................................................

Thanks for all the great comments so far. Obviously with this kind of investment, I've been doing a lot of research and reading up on a lot of PSUs. I've got another one added to my list.

Corsair 1200AX Gold:
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=189
Quote:
I've seen stability like this before, folks, but seldom on a unit this size. The 12V rail, which sees nearly a 74A difference between tests one and five, is still managing to get away with 1% or better voltage regulation. That's quite an accomplishment for any unit.
Quote:
Corsair was thinking of pretty much everything when they drew up this unit. It's fully modular, has that nice flat black cabling to help with cluttered cases, and has enough peripheral connectors to satisfy almost everyone. Going to have to do 9.5
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139014

1325043607-corsair.jpg
Edited by ericeod - 2/14/12 at 3:56pm
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post #2 of 35
Will you be able to reach the efficiency levels of one PSU more often than the other?

That would be my deciding factor.
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post #3 of 35
The way I look at it is I've seen charts of two 7970's pulling 500-600 watts together which leaves you plenty of headroom for other parts and upgrades anyways with the 1000W PSU as well as it's efficiency over the course of 5 years is going to be better on your electric bill.

So overall I'd go with the 1000W Platinum unless you were planning on tri-fire or higher.
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post #4 of 35
Thread Starter 
Quote:
Originally Posted by That Guy View Post

Will you be able to reach the efficiency levels of one PSU more often than the other?
That would be my deciding factor.
Quote:
Originally Posted by Traxion View Post

The way I look at it is I've seen charts of two 7970's pulling 500-600 watts together which leaves you plenty of headroom for other parts and upgrades anyways with the 1000W PSU as well as it's efficiency over the course of 5 years is going to be better on your electric bill.
So overall I'd go with the 1000W Platinum unless you were planning on tri-fire or higher.

First off, thanks for the replies!

I don't see myself reaching that level now, but I didn't foresee what I would eventually push with my 850w CM PSU either. I eventually had full WCing with 8 120mm fans, a 5970 + 5870 and 7 HDDs. I plan on upgrading to 2011 with a pair of 7950s in the next few months. I've seen reviews showing a 7950 CF setup requires an 800w PSU, and a CFx3 requires a 1050W. The PSUs are within $10 of each other.
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post #5 of 35
I also agree with That Guy on which one will you reach efficiency levels better or more often with and I have a X-850 Gold series and I love it. Rock solid stable power while having great efficiency. Also it is very aesthetically pleasing.
Edited by bom - 2/13/12 at 6:17pm
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post #6 of 35
1250...moar powah! (it'll probably be more efficient when just twiddling around) typer.gif
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post #7 of 35
700

Quick chart I found for ya.

source: http://www.legitreviews.com/article/1834/11/
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post #8 of 35
Quote:
Originally Posted by ericeod View Post

First off, thanks for the replies!
I don't see myself reaching that level now, but I didn't foresee what I would eventually push with my 850w CM PSU either. I eventually had full WCing with 8 120mm fans, a 5970 + 5870 and 7 HDDs. I plan on upgrading to 2011 with a pair of 7950s in the next few months. I've seen reviews showing a 7950 CF setup requires an 800w PSU, and a CFx3 requires a 1050W. The PSUs are within $10 of each other.

Is 1050w a "definitive" or a "theoretical" requirement?

If definitive, I would grab the 1250w "gold" for obvious reasons.

If theoretical, I would grab the 1000w platinum. Why? If you peak at 1050w, I'm thinking it will be in a burst situation. It will definitely be able to handle a burst like that.
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post #9 of 35
according to tpu, 7950s are ~140w cards at stock, with plenty of headroom at stock voltage too. 800w sounds hella excessive

any of the platinum 1000w psus will easily be able to handle an extra 50w without even blinking. my guess is that theyd be able to handle anything, right up into OPP or OCP or whatever shuts them off
post #10 of 35
Thread Starter 
Thanks for all the great comments so far. Obviously with this kind of investment, I've been doing a lot of research and reading up on a lot of PSUs. I've got another one added to my list.

Corsair 1200AX Gold:
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=189
Quote:
I've seen stability like this before, folks, but seldom on a unit this size. The 12V rail, which sees nearly a 74A difference between tests one and five, is still managing to get away with 1% or better voltage regulation. That's quite an accomplishment for any unit.
Quote:
Corsair was thinking of pretty much everything when they drew up this unit. It's fully modular, has that nice flat black cabling to help with cluttered cases, and has enough peripheral connectors to satisfy almost everyone. Going to have to do 9.5
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139014

1325043607-corsair.jpg
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My System
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Optical DriveCoolingOSMonitor
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