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What PSU for an OC i7 4770k + Water Cooling + SLI 780s OCd

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September 2, 2013 6:22:26 PM

I just want to know if this http://www.amazon.com/XFX-Single-Modular-Certified-P185... PSU would be okay/underkill/overkill for my system. Here is my build:
i7 4770k
Asus Maximus VI Hero
SLI 780s at 1200mhz
XSPC raystorm 240 w/ D5 pump
Samsung Pro SSD 128gb
Seatgate Barracuda 2TB
Corsair vengeance 8gb (2x4gb)
Thermaltake chaser a71 case
and 3 240 mm fans on chassis, as well as 3x120 mm fans for rad and exhaust.

What kind of wattage am I looking at here?
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September 2, 2013 7:21:53 PM

The only problem is that when I jump up to 1000w with the XFX PSU the price jumps $100. Is there any PSU that you can recommend int eh $150 price range for this build?

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a b à CPUs
September 2, 2013 7:30:09 PM
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Have you ordered any parts yet? Are you doing anything besides gaming(like video editing or rendering)? If not you can save some money by getting the 4670k instead of the 4770k. The main difference between the 2 is hyperthreading and games don't use hyperthreading, in some games it can actually hurt performance. If you get the 4670k that will leave plenty for the bigger power supply. NCIX does have the 1050w XFX Black edition with a Gold ratinf for $170($150 with a $20 mail in rebate, but I don't put alot of faith in MIRs).
September 2, 2013 8:31:11 PM

bignastyid said:
Have you ordered any parts yet? Are you doing anything besides gaming(like video editing or rendering)? If not you can save some money by getting the 4670k instead of the 4770k. The main difference between the 2 is hyperthreading and games don't use hyperthreading, in some games it can actually hurt performance. If you get the 4670k that will leave plenty for the bigger power supply. NCIX does have the 1050w XFX Black edition with a Gold ratinf for $170($150 with a $20 mail in rebate, but I don't put alot of faith in MIRs).


Yes, heavy photoshop, lightroom, FL studios usage. Just checked that out on NCIX thanks for the tip!
a b à CPUs
September 2, 2013 8:33:12 PM

I would agree with bignastyid if your main purpose is gaming go for the i5 instead of the i7. As said in some games you would have to turn off Hyperthreading turning the i7 into a i5 anyway. For gaming a i5 3570K or i5 4670K would work great. And if you are not going to overclock you could save more by going with the non K versions as that is the only difference between the K and non K.

With dual SLI GTX 780's you are going to need more than 850w.

One last thing if you are gaming on just a single 1080p monitor you could go with a SLI GTX 770 setup and save quite a lot and not sacrifice any performance what so ever.

I run a i5 3570K with a SLI Gigabyte GTX 670 on a triple Asus 27" Surround setup at 5760x1080 and can play any game that supports it at 60fps ultra/max. I run 60fps vsync'ed because that is what my monitors support.
September 2, 2013 10:11:08 PM

bryonhowley said:
I would agree with bignastyid if your main purpose is gaming go for the i5 instead of the i7. As said in some games you would have to turn off Hyperthreading turning the i7 into a i5 anyway. For gaming a i5 3570K or i5 4670K would work great. And if you are not going to overclock you could save more by going with the non K versions as that is the only difference between the K and non K.

With dual SLI GTX 780's you are going to need more than 850w.

One last thing if you are gaming on just a single 1080p monitor you could go with a SLI GTX 770 setup and save quite a lot and not sacrifice any performance what so ever.

I run a i5 3570K with a SLI Gigabyte GTX 670 on a triple Asus 27" Surround setup at 5760x1080 and can play any game that supports it at 60fps ultra/max. I run 60fps vsync'ed because that is what my monitors support.


I will be using it for photo processing as well as audio work in FL studios, so hyperthreading would be useful to me. Also reasons why I will definitely be overclocking it, and using the raystorm watercooling kit.

I plan on gaming at 1440p on ultra with a bit of anti aliasing, as well as nVidia surround on 3 1440p monitors eventually.. I will also be overclocking both video cards. The 770 is inadequate because of its 2gb VRAM, and the limited bus width on the 4gb model.
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