bit-tech.net

What is the best 720-750W Power Supply?

Comments 1 to 25 of 30

Reply
aleph31 26th April 2013, 11:56 Quote
My conclusion is that the Seasonic X-Series 750W is the best all-rounder, isn't it?
KayinBlack 26th April 2013, 12:43 Quote
The XFX is the same physical PSU design, but it's cheaper. Ergo, win.
xela333 26th April 2013, 12:46 Quote
Agreed, the XFX is the way to go. They use Seasonic for all their PSU's. I always recommend them at work now.
GeorgeK 26th April 2013, 12:53 Quote
Quote:
Originally Posted by aleph31
My conclusion is that the Seasonic X-Series 750W is the best all-rounder, isn't it?

That was my thought having had a read through - interesting that it doesn't get an award despite getting the same score as the "PC Power & Cooling" supply (which I wouldn't put anywhere near my rig tbh)
Quote:
Originally Posted by KayinBlack
The XFX is the same physical PSU design, but it's cheaper. Ergo, win.
Quote:
Originally Posted by xela333
Agreed, the XFX is the way to go. They use Seasonic for all their PSU's. I always recommend them at work now.

I've recently bought a Seasonic X-Series and was tempted by the, physically identical but cheaper, XFX but I've heard bad things about their customer service and decided that as the Seasonic I bought was on offer, and as such was only slightly more than the XFX, I would go for the Seasonic - it's an excellent PSU and I don't regret it in the slightest ;)
rollo 26th April 2013, 12:58 Quote
Brought the XFX myself a few years back now not had a problem with it since, ( brought it with my i7950 mobo and chip so we are talking 3 years give or take now )

100% stable with having had 2 580s and now 2 680s + the watercooling pump and stuff all connected.

Seasonic is the exact same psu but seasonic has slightly better customer service.
Shirty 26th April 2013, 13:06 Quote
What always makes me chuckle is that so many PC builders go for premium 750W or higher PSUs despite the fact that they will only ever be powering a single CPU & GPU rig with a handful of hard drives and a few fans.

One of the very reasons I have "downgraded" to a 550W unit - for my uses I would have seen no benefit in spending more than £50 - none whatsoever. So far in real world usage I haven't seen the rig pull more than 350W. I could probably just about have gotten away with a decent 430W to be honest, but I'm wary that overclocking might have been pushing that too far in extreme circumstances.
Spreadie 26th April 2013, 13:56 Quote
If I had to buy a new PSU, I'd be looking at 550W too, and I wouldn't consider spending more than £60-£65. Look at the premiums for the high efficiency PSUs - it will take you YEARS to recover the difference in price over a decent Bronze PSU; unless you're folding 24/7.

I understand some people want to leave room for the possible inclusion of a 2nd GPU, but most of people with fairly modern gear won't use more than 350W-400W. I ran an X58 rig with a dual GPU GTX 295, both CPU and GPUs heavily overclocked, and it didn't trouble my 700W Realpower PSU. My 2500k and 670 don't breach 350W when overclocked and stressed.
capmoq 26th April 2013, 14:54 Quote
No Corsair PSU? Come on :|
pbryanw 26th April 2013, 15:26 Quote
I think the only reason I spend more on PSUs is that the expensive ones also tend to be the quietest (Seasonic, Be Quiet!). And I've also downgraded to a 550W unit after previously owning a more-wattage-then-I-needed PSU.

Also, great article - thanks for the roundup Bit-tech.
AlphaAngel 26th April 2013, 16:30 Quote
Quote:
Originally Posted by capmoq
No Corsair PSU? Come on :|

100% agree. Corsair are one of the most commonly used and recommended PSUs and they have been admitted from this test?!

I understand that they may not have sent you a sample to test but I can't believe that you don't have one lying around.

I have seen this a few times with BT round ups - where the most common and popular models have been omitted.
Spreadie 26th April 2013, 16:38 Quote
I'm not sure how it works but, if BT are planning a feature, don't they contact all the usual suspects for review samples? Maybe Corsair didn't ship any, or they were late?
Adnoctum 26th April 2013, 16:50 Quote
My conclusion is the best PSU is the Seasonic X-Series. The extra isn't that much, you get more warranty, and you get Seasonic support instead of XFX. You may get Seasonic build quality with the XFX, but you get XFX support too.
Look at it a different way, you are paying 13 quid for 2 years extra warranty and Seasonic service support. Worth it.

Is 7 years warranty excessive and useless?
Tell that to my PC Power & Cooling Silencer 750w, 6 years (and 12mths out of warranty) and still chugging strong in an enthusiast-class machine. Dependable and inaudible at heavy loads, why would I "upgrade" any time soon? A high-quality PSU will easily outlast several generations of more ephemeral hardware like CPUs, GPUs, and MBs.
Tangster 26th April 2013, 18:30 Quote
Quite happy that my Dark Power Pro still holds up nicely. I'd quite happily use a lower power 550 or 600W PSU, but I originally bought the BeQuiet for an overclocked i7 950 rig, which enjoyed sucking power like vampires like blood.
AiA 26th April 2013, 19:16 Quote
my Be Quiet and Corsair (about 650W, and 550W) are still working nicely after a few years now :)
Gradius 26th April 2013, 20:29 Quote
I got myself 2x AX850. Corsair indeed is uber common. You guys really NEED to do a review with Corsair too.
Zaim 26th April 2013, 21:11 Quote
I'm quite surprised there is no Corsair psu in that test. Imo the best 750w psu is the AX series, reviews speak for themselves.

I wouldn't touch xfx psus as their support is terrible.

Sent from my HTC One X using Tapatalk 2
The_Crapman 26th April 2013, 22:40 Quote
Pffft. Your puny weakling PSU's are a pathetic insignificance. Everyone knows that anything under 1Kw isn't worth having.
http://www.solvencyiinews.com/wp-content/uploads/2012/07/morepower.png
Nexxo 26th April 2013, 23:57 Quote
Quote:
Originally Posted by GeorgeK
That was my thought having had a read through - interesting that it doesn't get an award despite getting the same score as the "PC Power & Cooling" supply (which I wouldn't put anywhere near my rig tbh)
PC Power & Cooling is supposed to have a really solid reputation, but mine was the only PSU I've ever owned that literally went up in smoke.
leslie 27th April 2013, 00:20 Quote
Quote:
Originally Posted by Shirty
What always makes me chuckle is that so many PC builders go for premium 750W or higher PSUs despite the fact that they will only ever be powering a single CPU & GPU rig with a handful of hard drives and a few fans.

{cut}
So far in real world usage I haven't seen the rig pull more than 350W.

Agreed, on modern systems, we don't need as much power as we used to, but you can go too far and regret it later. As you get down at lower wattages, you do have to start being careful of what rails that power is coming from. It's safer and easier to just over buy, which leaves you head room for upgrades later should you need it, but I do agree, many today are over buying, especially for basic office systems.

As for never seeing one break 350watts...
Dig up an old Pentium 4 805D, these were the first chips where you could hit 4gigs without exotic cooling. Though considering that they can push 240 watts from the cpu alone when overclocked that high, you need a heck of a PSU and cooling system. Combine that with the right video card and you are right at 350 watts just about at idle.

Mine was pulling well over 400 watts from the power supply under load (without SLI), when the 550 watt PSU, the UPS and the water pump all decided it was just too much. Which is why I now have 6 year old, 750 watt PSU in my box.

Quote:
Originally Posted by Nexxo
PC Power & Cooling is supposed to have a really solid reputation, but mine was the only PSU I've ever owned that literally went up in smoke.
They had a fantastic reputation before they were bought out. They are still good, just not as good as they once were. Even then though, there is always faulty ones.

My (pre buyout) Silencer 750 is over 6 years old (possibly 7 or 8) and still powers the overclocked 2600k in my desktop. I consider it one of the best investments I ever made in computing.
walle 27th April 2013, 00:58 Quote
Using a Kingwin Lazer Platinum 550W and couldn't be happier.
John_T 27th April 2013, 16:19 Quote
Quote:
Originally Posted by Article
Finally, we also measure the noise output of each PSU under three different loads...

I love that you've decided to do this in a measurable way! Noise is one of the biggest gripes I have with PC components, and it's also one of the hardest things to judge from a consumer's perspective - as many different sites give conflicting opinions on the same hardware, so you often don't really know what's something is like until after you buy it.

If you could do this on GPU's as well that would be fantastic.
GeorgeK 28th April 2013, 09:27 Quote
Quote:
Originally Posted by John_T
I love that you've decided to do this in a measurable way! Noise is one of the biggest gripes I have with PC components, and it's also one of the hardest things to judge from a consumer's perspective - as many different sites give conflicting opinions on the same hardware, so you often don't really know what's something is like until after you buy it.

If you could do this on GPU's as well that would be fantastic.

I don't know how but I'd completely missed that page of the review until now - my first reaction was HOLY C**P 50dB(A)!!!!! How does a PSU make that much noise!!!
Star*Dagger 29th April 2013, 20:39 Quote
"While a 750W power supply is overkill for the average home computer, it's a reasonable capacity to opt for if you're touting more enthusiast level hardware."

WRONG WRONG WRONG. 750W is too low for an enthusiast, and average computer users will never come to an enthusiast site, which is just as well since your recommendations for PSUs have been anemic for YEARS.

Try running gaming rigs on an anemic 750 watt PSU. You might get it to serve through one rig for 2 years, but ive been running 1200 and 1300 watt PSUs in several rigs. Overall you save money, and components by going with a top end, top watt PSU.
Please educate yourselves on this so you stop (unintentionally?) lying to your readers.

You can start by talking to tech who work with PSUs on a daily basis and understand what I am trying to convey.

Cheers.

Yours in Corrective PSU Plasma,
Star*Dagger
Spreadie 29th April 2013, 20:48 Quote
Quote:
Originally Posted by Star*Dagger
"While a 750W power supply is overkill for the average home computer, it's a reasonable capacity to opt for if you're touting more enthusiast level hardware."

WRONG WRONG WRONG. 750W is too low for an enthusiast, and average computer users will never come to an enthusiast site, which is just as well since your recommendations for PSUs have been anemic for YEARS.

Try running gaming rigs on an anemic 750 watt PSU. You might get it to serve through one rig for 2 years, but ive been running 1200 and 1300 watt PSUs in several rigs. Overall you save money, and components by going with a top end, top watt PSU.
Please educate yourselves on this so you stop (unintentionally?) lying to your readers.

You can start by talking to tech who work with PSUs on a daily basis and understand what I am trying to convey.

Cheers.

Yours in Corrective PSU Plasma,
Star*Dagger
Utter nonsense.
Log in

You are not logged in, please login with your forum account below. If you don't already have an account please register to start contributing.



Discuss in the forums