80 PLUS Gold: Four Efficient 700-850 W Power Supplies
Gamers and enthusiasts are always on the lookout for crème de la crème hardware. It's easy to pick winning CPUs and graphics cards; less so for PSUs. We put four 80 PLUS Gold devices from Antec, FSP, Seasonic, and SilverStone under the magnifying glass.
Measurements: FSP Aurum Series AU-700
Efficiency according to 80 PLUS specifications
Efficiency based on performance profiles.
The Aurum-700 performs well across the board. It easily reaches the levels defined by the 80 PLUS Gold specification, and even exceeds them at 50% and 100% load.
Even at low loads, the AU-700 is convincingly efficient, delivering 73% power efficiency at 25 W. In this discipline it benefits from having a lower maximum output level than the other devices in the test.
In standby mode, this FSP PSU sets the standard for comparison. The AU-700 consumes only 0.1 W by the strict EuP measurement, which tracks consumption without loads on any of the rails. The other devices tested consume about 0.2 W in standby. The FSP Aurum performs nicely in all tests, showing no weaknesses, even in ripple rectification.
If you can do without modular cable management, the FSP Aurum serves as a modern high-performance PSU at a very reasonable price of only $130. It comes out at the top of our comparison. It sets the bar especially high in terms of efficiency. Together with its quiet fan, the AU-700 is an excellent PSU.
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Current page: Measurements: FSP Aurum Series AU-700
Prev Page FSP Aurum Series AU-700 Next Page Seasonic X-760Westinghouse's eVinci micro nuclear reactor for data centers delivers 5 megawatts of power for eight years without refueling — microreactors could power next-gen AI data centers
Seasonic power supplies debut with OptiSink design to improve cooling — Opti Sink touts an 8X increase in thermal conductivity
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compton Every now and again you can catch the Seasonic X series on sale. I picked up a X-650 for about $110 with shipping. For that price, there isn't really anything better. With out a sale, I still say full modular and 80+ Gold is worth the premium over less auspicious contenders.Reply
Thanks for an excellent review. -
on the seasonic X-760 introduction, the first paragraph states that it comes with hard-wiring. But if you look at the pictures, and further down the review, you'll notice that it is fully-modular.Reply
no pun intended here ;-) -
The Greater Good comptonEvery now and again you can catch the Seasonic X series on sale. I picked up a X-650 for about $110 with shipping. For that price, there isn't really anything better. With out a sale, I still say full modular and 80+ Gold is worth the premium over less auspicious contenders.Thanks for an excellent review.Reply
I've used the X 650 in builds for two of my friends. I can't wait to get mine. The cabling is perfect for the Antec 1200 case. -
What about noise? Only had a quick glance at the article but that didn't seem to have been measured.Reply
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flong Great review, but where is Corsair???? Certainly Corsair is one of the industry leaders and most recommended PSUs on the market.Reply
This review would have benefited greatly by including both silver and gold rated PSUs from 750W - 1000W. Some Silver rated PSUs actually perform at nearly at gold levels (Corsair) and so they are a great value.
It would have been nice to have some expert comment on Au's claim that a non-modular cable setup improves efficiency. This appears to be a myth because we see many modular units outperform non-modular units in their class.
Still I really enjoyed this review. -
jah_33 Not to forget is that a 80+ PSU generates about twice the heat of a 80+ Gold PSU, 20% compared to 10% of the power output. So a gold certified PSU should be significantly more quiet then a 80+ given equal cooling.Reply
flongGreat review, but where is Corsair???? /citation]Corsair don't build there own PSU:s the are mostly Seasonic built, some CWT. For example the Corsair AX series are nearly identical to the Seasonic X series, the only difference is the fan. -
darreng101 I have a SeaSonic X-760 fitted to an O/C'ed i7.Reply
The 'fan-on' at 20% (i think without looking back) is worst case, mine kicks on at about 30-35% depending on ambient temp, so its awesome quiet. Even when on its quiet.
It works very well in a dual gaming/home cinema box...
I'd definiately recommend one -
dominatorix ok., compare: http://www.tomshardware.com/reviews/gaming-psu-efficiency,2796-11.htmlReply
with: http://www.tomshardware.com/reviews/750-watt-psu-80-plus-gold,2927-3.html