PSU Antec Truepower Modular or Corsair HX 850w

Hi all,

Currently looking at purchasing a power supplier to power my new rig.
I currently have an

i7-920
Gigabyte x58UDR3
Corsair H50
f3 1TB Samsung
Corsair 3x2gb

Looking at purchasing a ATI 6870. Will eventually run crossfire but won't be for some time (possibly when I next upgrade the card). Will look to overclock as well so I want a sufficent, quiet PSU.

There is about £30 difference between the Antec and the Corsair, so I am currently leaning towards the antec. PSU has to be modular.

Anyway, what do you reckon?

found this one so far, would 750w be enough?

http://www.scan.co.uk/products/750w...silver-88-eff-sli-crossfire-eps-12v-135mm-fan

 

Also looking at the XFX 850 modular which is £111, which I would be more than happy to stretch to. Did not want to go much over £100.

 

I would of thought 750w would be enough but I am not sure on the power draw of 6870's in xfire. Hopefully someone can post here and confirm.

The Antec TruePower New 750w is not fully modular, some cables are still hardwired.

Here are the reviews, of the three you have mentioned, by a highly recommended PSU review site:

Antec Truepower New 750W
Corsair HX850 850W
XFX 850W Black Edition

Plus some other options:

Antec CP-850 850W
Antec TruePower Quattro (TPQ-850) 850W
Seasonic X-750 750W

Edit: It appears that the 6870 draws 273w under Furmark load (source: http://www.hexus.net/content/item.php?item=27053&page=15).

I would assume that 750w would be enough then.

 

thanks mate. Think I am leaning to the XFX 850w modular. I know you stated that 750w would be enough, but I would like to go a bit higher for future compatability.

 

I have the Seasonic X-750, no complaints what-so-ever. Completely modular and very quiet. Though appreciate it doesn't fall within your budget.

Not sure who makes the XFXs?

As regards whether 750w is enough, I am running 2 x 1Mb GTX460 GLH in SLi, an OC'd i-750, Corsair H50, an SSD and two 1TB F3s and the PSU isn't breaking sweat.

Appreciate you are going to run a more power-hungry CPU, but 750w should still be plenty IMO.

 

The current XFX units are Seasonic M12D designs. Solid, but outdated and not massively quiet if that bothers you. But I'm guessing on that tight a budget, it doesn't.

However, why not get yourself the genuine article for less than £100?

Clicky

 

6870s draw a very similar amount to 5850s, so even a good 650W PSU would be plenty for a system with two 6870s, a hefty overclock on both the GPUs and the CPU would make me think that you should probably be looking at a 750W PSU, even though you could probably still do it on a 650W PSU, you just want to have a bit more headroom when you overclock like crazy.

I believe all XFX PSUs (including XXX, Black and Core edition) are made by Seasonic.

This Silverstone is also a good option, it's 750 and 850W older brothers have been reviewed positively: Silverstone Strider Plus ST75F-P 750W 80Plus Silver Fully Modular £93

 

I would suggest to get the Corsair one.
HX series is the high-end range model of Corsair (above that is the AX series which is the very fancy model).

Antec TruePower series is the medium-low range of Antec.

The Antec one is only 80 plus Browse certified, while the Corsair is 80plus silver certified.
The Corsair is also quieter, and more modular than the TruePower.

Remember that your PSU doesn't consume 850W.. it's UP TO 850W. So all you do by getting a higher one, is open doors, and ensure that when you computer is under load, it's at about 50% load of the PSU, which translate to the peek efficiency of the PSU.


The Antec CP-850 850W suggest above is actually an unimpressive low end PSU.

The Seasonic X-750 750W is identical to the Corsair AX750 (Corsair AX series is made by Seasonic, so pick the cheapest between both)
I have the Corsair AX750 (as it was much cheaper over the Seasonic one when I got it as it was on special).
I am very satisfied with it. When my computer is idle, the PSU fan doesn't' spin, and the PSU operation is relatively cool (for a PSU). When under load, now the fan kicks it. And the fan is extremely quiet. If you want quiet PSU THAT is the ideal model to get (Seasonic X or Corsair AX series). The cool operation system is mainly due that the PSU is actually 80plus Gold certified, where it's at least 87%, 90%, 87% efficient at 20%, 50% and 100% operating loads respectively. So, it's impressive stuff.
It's also fully modular.

 

The Corsair 750HX is on Scan's Today Only now for £104.56. Note that it still has some captive cables but these you will use every time anyway.

 

For the Antec Truepower New series to be a medium to low range Antec product speaks volumes about what their high end products must be like, as the Antec Truepower New is actually quite good. It is 80Plus Bronze certified actually.

Do you have some evidence that the Corsair HX is quieter? According to the table on this page http://www.silentpcreview.com/article1073-page4.html the Antec doesn't seem to do terribly worse (up to 300W) compared to the Seasonic X-650 or Corsair AX-850.
How is the Antec CP-850 a low end product? It has pretty solid voltage regulation and incredible noise and ripple suppression.
The only problems it has is low efficiency at full load (around 79-81), the only thing stopping it from getting 80Plus Bronze, and lots of noise when delivering 850W. Altho it's efficiency and acoustics are all very favourable at lower loads which are more realistic.
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=142
http://www.hardwaresecrets.com/article/Antec-CP-850-Power-Supply-Review/736/1

I believe the fan chosen differs between the Seasonic version and the Corsair version, and I seem to remember the Seasonic fan being favoured for producing less noise.

 

I don't know if it helps but I have both a Corsair 520HX and an Antec TruePower New 650w and I can't hear either of them - the silence is identical to me.

 

This doesn't mean anything.

Thank you for taking credit on what EXACTLY what i said.

Antec is too loud. And again, when your system is idle, the Corsair AX and Seasonic X series fan doesn't spin, at all. What is also not calculated here, as mentioned on the note at the bottom of the table, is that the PSU is essentially outside your computer. It's warmer in your computer so one can deduct that the fan will obviously spin faster.

Proprietary format makes it only work on 3 Antec cases... so yea already that's low end on my watch. And the inability to reach 80Plus Silver certification for that price, is a failure.

They are identical, I checked. When I picked the Corsair AX750, a friend of mine was impressive by it, and needed one, and got later the Seasonic X-750 as that one was on a special and was cheaper. I brought my PSU over him, to compare the fan behavior and design, and despite not being a lab and willing to open the PSU up voiding both our warranty, we could clearly see that they were identical. The fan what spinning at exactly the same stress condition and to the ear did the same noise level.

Internet pictures, and box specification, shows that both PSU are identical, including fan manufacture. The only thing that is different is the modular cables, which are perfectly interchangeable between the two PSU's as they are the same.

 

It means that the Antec Truepower New is not a medium to low end product, it is a medium to high end product.

You said browse, which I didn't see, or equate to Bronze. Apologies.

You're not going to hear either Antec PSUs at idle, or up to 300W much like the Corsair AX/Seasonic X. And it seems to me you'll hear the Corsair AX850 just as much as you will hear the Antec CP850 at full load, in which case according to you the Corsair is too loud. Unless you've got some personal experience to draw upon again.
I don't understand what you mean by those last two sentences because the numbers in that table are from when those PSUs were tested in the hotbox, which gets up to 40 degrees celsius.

Is it a proprietary format or just uncommon? Either way, yes that is a minus, but IMO it doesnt significantly detract from the fact that it performs exceptionally well in most regards, again not at full load.
Roughly £100 for an 850W, 80Plus Bronze certified PSU, with amazing voltage regulation, ripple and noise suppression doesn't seem that bad to me.
It's value has been decreased recently due to other 750 and 850W 80Plus Silver units coming down to around the same price. It's not a failure, it just needs it's price adjusted a bit or for Antec to release a new version with slightly higher efficiency and to make sure that there are more cases which can support it.

Ok I remembered incorrectly about the fan.

I'm not saying the Antec CP850 is better than the Corsair AX/Seasonic X series, but it's nowhere near as bad as you seemed to suggest.

 

No I apologies, I did not pay attention when Firefox spell check kicked in, and I picked the wrong one. I was sleepy.

I guess, I was too critical on it.

 

Ummm, herrro??

I post a link to a genuine Seasonic product, in budget, and the arguments persist about more expensive things which the OP already said he didn't wanna go to.

And Goodbytes, not me arguing with you

 

okenobi is right, there is no need to intellectialise this any more, the PSU he linked is 80+ Gold rated, modular, more than enough power, excellent quality and within budget: 750W Seasonic M12D-750, Modular, 80 PLUS Gold - £98.45.

If you really want to save a couple of quid, the 750W XFX Black Edition, Modular, 80 PLUS Silver is £87.83 but is out of stock @ Scan.

 

Ok, I apologize for derailing this thread.

And I didn't actually spot that that PSU was 80 Plus Gold until fingers pointed it out.

 

xfx range is a seasonic design and it got a gold award from custom pc magazine and many other sites recomend it as well.

worst review ive seen of it was a 8

seen tests were it was running at nearly 1k watt and this is the 750 watt unit

 

Thanks for all your help guys, much appreciated. I decided to go for the Corsair 750w HX modular due to the input in this thread. I know this stretched a bit above my listed budget, but it seemed stupid to fork out a large amount on a system and skimp on the PSU.

Let's hope 750w will be enough

 

I am officially invisible. Enjoy your overpriced, inferior unit.