500W to 550W: 12 Power Supplies Compared
by Christoph Katzer on February 20, 2009 5:00 AM EST- Posted in
- Cases/Cooling/PSUs
Awards
We conclude yet another gigantic power supply roundup with our Editors' Choice awards.
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Tagan's SuperRock delivered very stable voltage and low ripple on the 5V and 12V rails. The 3.3V rail has higher ripple but it's still within specifications. Acoustic noise is very low, and even at maximum load the SuperRock doesn't break 20 dB with an ambient temperature of 26°C. The 85% efficiency is pretty average these days, which is one of our few complaints, but the cable harnesses are good and users that want run a lot of components will appreciate the vast selection of SATA and Molex connectors. We are pleased to present Tagan with our Bronze Editors' Choice award.
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Our Silver Editors' Choice award goes to Arctic Cooling for their Fusion power supply. This is another very quiet power supply that still manages to deliver excellent cooling performance. The maximum efficiency is among the best in this roundup, reaching 88% efficiency at medium load and 85% efficiency at 20% load. We do have some minor complaints about the cables and connectors, but those are only really a concern if you don't run what would qualify as a "typical" computer (i.e. fewer than three hard drives). Voltage stability was great for a Seasonic built unit and ripple was within specifications. All of this is topped by an extremely attractive price of €54 or $64.
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Last but certainly not least, the top power supply of our roundup today is the BFG LS-550. BFG delivered good performance in every aspect, with tight voltage regulation and ripple well within specifications. Efficiency was through the roof, with 86% efficiency at 20% load. It also generated the highest maximum efficiency of 88% on 230VAC and 86% on 120VAC. This isn't the quietest power supply, but it's not at all noisy -- few people would notice this PSU once it's installed within a PC case. You also get a reasonable number of connectors and good cable lengths. The excellent build quality and performance makes the US selling price of $70 a great deal; we can only hope that European users will soon be able to purchase this power supply as well. All of this makes the BFG LS-550 the winner of our Gold Editors' Choice award.
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Mastakilla - Sunday, February 22, 2009 - link
thanks a lot for the tip, but after adding shipping costs, this is waaaaaaaaaay above my budget (68 euro)knowom - Friday, February 20, 2009 - link
The XClio STABLEPOWER 500W really should have been included it's a great PSU and very silent it's also relatively inexpensive for the quality especially if you can find one on sale.orionmgomg - Friday, February 20, 2009 - link
How many PSU reviews are you going to do?I know a good PSU is important, but the margins are so close - and for the most part the choice is very simple; OCZ, Cooler Master, Corsair, Ultra, Antec, etc, etc, etc...
Just give people a little list of what to look for, what’s new on the market and what your top 3 recommendations are.
Use the extra energy to dive further into the different i7 platforms, or give us some updates on TOP tier i7 systems with Uber Graphics solutions, we like to see and read about the over the top most powerful computer systems and gaming systems, not yet another review about mediocre low power PSUs...
As always, thanks for the info on the site, and for being one of my favorite tech update daily visits.
We want graphics reviews from YOU. (not the other guys...)
What i want to see is a i7 system OCed to hell running 3 GTX 285s, vs. quad sli (2xGTX295) vs. quad ATI (x24870x2)
Or other insight into the i7, or Geforce 9300/9400 or how much apple and the iphooled suck…
Snarks - Saturday, February 21, 2009 - link
i care, because most of us here can't afford a 3,000+ system, let alone be stupid enough to buy one.i am actually rather sick of these "uber" high platforms and never any midrange stuff like most of us use, what i would actually like to see is a e8400 with a 4870 or gtx260 compared to see what real world performance i will actually get, not some 1,000+ cpu with a 400+ graphics card.
orionmgomg - Saturday, February 21, 2009 - link
I see - your point is taken. There are other sites that have lots of reviews like this one, another site is fudzilla, guru3d, and toms hardware - but they dont have the same level of inteligence (for the most part) as Anandtech.I imagine if your looking for a mid range PSU, and your on a budget, some of these PSUs recommended here cost almost the same amount as 1000W PSUs... So - I am not sure what to say other than, if I am on a budget, I look for the CHEEPEST PSU that qualifies to my standards... - knowing the standards is more important than micro analizing 500/550 and 600 watt PSUs for their oh so slight differences, and when your on a budget, who really cares, as long as its a quility built and reputable company, bottom line is bottom line... and as I said, some of the "best" mid range PSUs go for the same or little less than quality 1000w PSUs... So - so.
On the other hand, insight as promissed into the i7 platform, more coverage of the multitude of systems as prommised would be nice, though I know its all very time consumming, and repetitive, because just when your done with one major review, an entire new platform is already on its way out! So, it kinda sucks, but thats why we come back and keep reading...
mindless1 - Friday, February 20, 2009 - link
With so many full ATX PSU to choose from and most systems not built for gaming using under 300W, it seems there is still a gap in what many of us need.Which mATX PSU can deliver, since their upper limits tend to be a lot closer to the peak load a system might place on it, and their construction often economized to their price-points not just the available space inside?
tynopik - Friday, February 20, 2009 - link
ok, so english might not be katzer's native language, but that's what editors are forComparison: PCI-E Cable Lengths - Arctic Cooling is only company to provide >>for<< PCI-E connectors.
> BFG LS-550 manages just 1.5% regulation - poor phrasing, sounds like that's a bad thing
> spend the fans faster -> spin
> which up to keep temperatures in check.
> which were some people is far and away
> pleased to present >>taken<< with our Bronze Editors' Choice award
Christoph Katzer - Friday, February 20, 2009 - link
Speech recognition software sometimes gets it wrong and since Jarred was up all night he just wanted to finish up at some point. We'll make sure to correct it all.JarredWalton - Friday, February 20, 2009 - link
Thanks - I think I got all of the typos (speechos) fixed now. It's pretty rough doing final edits at 3-4AM some times!AMDfreak - Friday, February 20, 2009 - link
Nicely done review. However I find it disappointing that an exhaustive PSU review leaves out such a major player as PC Power & Cooling. Yes, OCZ was represented and I know they now own, PCP&C, but the ModStream line is not from PCP&C. If the Silencer 500W had been included in your review, I think your awards would be very different.