850W PSU Comparison: XFX vs. SeaSonic

darrylzuk · Jul 27, 2014

I'm trying to pick out a power supply in the 850W range for my upcoming build. After reading a ton of reviews, I've narrowed it down to these the two below, and want to see if there's really any reasons for going with the SeaSonic other than the longer warranty.

XFX: http://www.newegg.com/Product/Product.aspx?Item=N82E16817207028
SeaSonic: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151102

The XFX is $99.99 after rebates and promos at newegg, and the SeaSonic is $157.99 at SuperBiiz. As a side note, for the same price of the SeaSonic unit, i could get the 1050W model of the XFX.

Thanks for all your help!

zeyuanfu · Jul 27, 2014

darrylzuk :

XFX stuff are just rebranded Seasonic units, so performance-wise, you probably won't notice a difference.

Dark Lord of Tech · Jul 27, 2014

Best 850w on the market , better than both of them.

I own 2 of these.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX US)
Total: $99.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-27 13:10 EDT-0400

Performance (40% of the final score) - we're down to scoring time again. And, as with all other recent units from EVGA and Super Flower, this one will be a breeze to score. Pass for Gold, both cold and hot, means no points removed from a perfect score. Amazing ripple suppression the likes of which has only been seen a handful of times on this site means no points removed there. And finally, yes, this unit did manage to hold onto an average of 1.2% regulation in the hot box so no points come off there, either. This guy's getting a 10.

Functionality (20% of the final score) - full modularity. Lots of cables. Good cable lengths. Plenty of connectors. Switchable semi-fanless mode. Lots of goodies in the box. Nice size 16 gauge line cord. I really can't think of anything to complain about here, either. 10.

Value (20% of the final score) - $144.99 is the asking price of these at Newegg right about now. It shares this price with the Silverstone ST85F-GS. Now, about the only thing that unit has on this one is its much shallower depth. Other competition? What other competition? Coolmax? More money, if you can believe that. Corsair HX850? More money. Corsair RM850? More money. Themaltake Toughpower Grand? More money. Seasonic X-850 KM3? Way more money. EVGA has this category locked right down. 10.

Build Quality (20% of the final score) - I'm going to remove a point for the fan control wiring and be done with it on this one. Soldering is good enough to pass with no deductions, the AC line filter is pretty much all there in the end, the component selections are fantastic, and the capacitors are wall to wall Japanese. 9.5.

jonny guru review.

Summary

Buy one. Do I really need to say anything else at this point? Once again, EVGA has something awesome here the competition can't seem to touch price wise. Performance? There are better units, yes. Not very many, but they exist. The real story here is how EVGA keeps managing to offer this kind of performance and still be more affordable than nearly everything else out there, and they have pretty much found perhaps the only OEM on Earth capable of doing it for them. It's got to be real nice being EVGA right now.

The Good:

outstanding ripple suppression
excellent voltage regulation
fully modular
semi-fanless mode
nice blacked out cabling

The Bad:

nothing at all

The Mediocre:

reviewing awesome units is getting dull... where's that gutless wonder in my pile? Second in line? Well, at least I'm guaranteed something interesting in all the wrong ways in a couple weeks...

darrylzuk · Jul 31, 2014

Best 850w on the market , better than both of them.

I own 2 of these.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX US)
Total: $99.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-27 13:10 EDT-0400

Performance (40% of the final score) - we're down to scoring time again. And, as with all other recent units from EVGA and Super Flower, this one will be a breeze to score. Pass for Gold, both cold and hot, means no points removed from a perfect score. Amazing ripple suppression the likes of which has only been seen a handful of times on this site means no points removed there. And finally, yes, this unit did manage to hold onto an average of 1.2% regulation in the hot box so no points come off there, either. This guy's getting a 10.

Functionality (20% of the final score) - full modularity. Lots of cables. Good cable lengths. Plenty of connectors. Switchable semi-fanless mode. Lots of goodies in the box. Nice size 16 gauge line cord. I really can't think of anything to complain about here, either. 10.

Value (20% of the final score) - $144.99 is the asking price of these at Newegg right about now. It shares this price with the Silverstone ST85F-GS. Now, about the only thing that unit has on this one is its much shallower depth. Other competition? What other competition? Coolmax? More money, if you can believe that. Corsair HX850? More money. Corsair RM850? More money. Themaltake Toughpower Grand? More money. Seasonic X-850 KM3? Way more money. EVGA has this category locked right down. 10.

Build Quality (20% of the final score) - I'm going to remove a point for the fan control wiring and be done with it on this one. Soldering is good enough to pass with no deductions, the AC line filter is pretty much all there in the end, the component selections are fantastic, and the capacitors are wall to wall Japanese. 9.5.

jonny guru review.

Summary

Buy one. Do I really need to say anything else at this point? Once again, EVGA has something awesome here the competition can't seem to touch price wise. Performance? There are better units, yes. Not very many, but they exist. The real story here is how EVGA keeps managing to offer this kind of performance and still be more affordable than nearly everything else out there, and they have pretty much found perhaps the only OEM on Earth capable of doing it for them. It's got to be real nice being EVGA right now.

The Good:

outstanding ripple suppression
excellent voltage regulation
fully modular
semi-fanless mode
nice blacked out cabling

The Bad:

nothing at all

The Mediocre:

reviewing awesome units is getting dull... where's that gutless wonder in my pile? Second in line? Well, at least I'm guaranteed something interesting in all the wrong ways in a couple weeks...

Thanks. I was also looking at the PSU, however, I didn't see it listed on the Newegg Eggxpert Tiered Power Supply List... I know it's made by Super Flower, which seems to have a pretty good track record. Can you post some pics of what it looks like installed in your rig?

Dark Lord of Tech · Jul 31, 2014

I have my 1000w one in this one , my other is downstairs , I'll post the 1000w it looks almost the same.

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850W PSU Comparison: XFX vs. SeaSonic

darrylzuk

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