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Corsair vs XFX PSU?

Tags:
  • XFX
  • Power Supplies
  • Intel i7
  • Components
  • Corsair
Last response: in Components
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August 21, 2014 6:39:57 AM

hi,
i`m thinking this build
i7 4790k
gtx 780 ti
asus maximus vii hero
8gb vengeance pro
phanteks enthoo primo

but i´m undecided in buying a CORSAIR AX760 or a XFX PRO SERIES BLACK EDITION 850W
and in a few months i will put water cooling

someone help me?

thanks

More about : corsair xfx psu

a c 80 ) Power supply
August 21, 2014 6:46:02 AM

Now that's hard. The AX is a tier 1 best quality PSU but the XFX (this one is tier 2 class A) has more room for upgrading (like SLI).
My advice: get the 850W XFX as its also very high quality and has lots of room for upgrades :) 
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a b ) Power supply
August 21, 2014 6:46:59 AM

I second the 850W XFX. While the AX760 is a fantastic CPU, the 850W gives you room if you ever drop a second 780 Ti in your build.
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a c 157 ) Power supply
August 21, 2014 6:57:13 AM

A GTX780ti needs only a 620w psu. From that point of view, either would do; they are both of sufficiently high quality. If, however you are considering dual cards, you might need more than 850w.
http://www.realhardtechx.com/index_archivos/Page362.htm

This is obviously a high end build.
I have no problem overprovisioning a PSU a bit. Say 20%.
It will run cooler, quieter, and more efficiently in the middle third of it's range.
A PSU will only use the wattage demanded of it, regardless of it's max capability.
If you might go to triple monitor gaming or a 4k monitor, then you should plan on dual cards and a 950w psu would be appropriate.

I have become a bit jaded on the subject of haswell cooling for overclocking.
How high you can OC is firstly determined by your luck in the bin lottery.
I had high expectations from the Devil's canyon parts and their better thermals.
I found out that the thermals really do not matter unless, perhaps, you are a competitive overclocker.
Haswell runs quite cool, that is, until you raise the voltage past 1.25v or so.
Once you go past 1.3v, then you really do need very good cooling to keep stress loads under say 85c.
But, voltages higher than 1.30 are not a good thing for 24/7 usage.
Even if you can handle the heat, how much do you really need that extra multiplier from say 4.4 to 4.6?
My thought is that it is better to use the exotic cooling funds for a quieter and less expensive air cooler.
Anything extra can go to a stronger graphics card for the gamer or a SSD.

As to liquid cooling, here is
My canned rant on liquid cooling:
------------------------start of rant-------------------
You buy a liquid cooler to be able to extract an extra multiplier or two out of your OC.
How much do you really need?
I do not much like all in one liquid coolers when a good air cooler like a Noctua NH-D14 or phanteks can do the job just as well.
A liquid cooler will be expensive, noisy, less reliable, and will not cool any better
in a well ventilated case.
Liquid cooling is really air cooling, it just puts the heat exchange in a different place.
The orientation of the radiator will cause a problem.
If you orient it to take in cool air from the outside, you will cool the cpu better, but the hot air then circulates inside the case heating up the graphics card and motherboard.
If you orient it to exhaust(which I think is better) , then your cpu cooling will be less effective because it uses pre heated case air.
And... I have read too many tales of woe when a liquid cooler leaks.
google "H100 leak"
-----------------------end of rant--------------------------

I suggest a noctua nh-D15 or phanteks with dual 140mm fans.
Your pc will be quieter, more reliable, and will be cooled equally well

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August 21, 2014 6:57:57 AM

850w would give you the headroom needed for another card if you chose to do so. I had the ax860i and while it was a nice PSU, it had the stupid coil whine issue...so EVGA 850 G2 Supernova was my next choice..awesome PSU.
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August 21, 2014 7:36:24 AM

From my understanding XFX is made by seasonic, which makes stellar PSUS (No experience with them though) My local Microcenter carries lot of Corsair models and ive almost exclusively built with them and have had zero issues with them.. (Antec and Enermax being the others)

I do not recommend Enermax (LEPA) at all.
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