Is this a Sufficient PSU?

cellod · May 2, 2013

I am about to do my first build and I have no idea what power supply I should use.

Intel Core i5-3570K
ASRock Z77 Extreme4
G. Skill Ripjaws X 16GB (2 x 8)
GTX 660
2 x Seagate Barracuda 3TB 7200 RPM
Samsung 840 Pro SSD
Blu-ray burner

I do plan on making some upgrades later on, such as another video card.

These are the two PSUs I am considering:

Corsair HX 850

or

SeaSonic M12II 620

Budget is an issue. If I can save $75 and go with the smaller one, that would be my preference, but if it's more realistic to get the other one, I'm willing to do it.

ittimjones · May 2, 2013

Get the Corsair HX 850. That is perfect and exactly what i was going to recommend halfway through reading.

jnkweaver · May 2, 2013

If you are planning on a single card you can and should go with the Seasonic.

They are both great supplies. The Corsair is made by Channel Well which is pretty decent.

The 620W is more than enough unless you are thinking of Crossfire/SLI or buying the 690.
http://www.johnnylucky.org/power-supplies/gpu-power-requirements.html

edited for correction.

mace200200 · May 2, 2013

Either one is fine depending on how much your willing to spend, if you want a bigger gold rated unit these are best for the value: http://www.newegg.com/Product/Product.aspx?Item=N82E16817182073

Deleted member 217926 · May 2, 2013

GTX 660 Sli requires a recommended 620 watts. The Seasonic is a better unit and plenty of power to add a second card.

A much more complete power requirement list here.

http://www.realhardtechx.com/index_archivos/Page362.htm

cellod · May 2, 2013

I'm confused, you're saying that to run the GTX Sli will require a minimum of 620W, but I should pick the PSU that maxes out at 620?

jnkweaver · May 2, 2013

cellod :

Sorry I meant to say that if you would CF or SLI get the Corsair. I fixed the line.

Deleted member 217926 · May 2, 2013

That 620w recommendation takes into account your other components and gives you plenty of headroom. Realhardtechx maintains the most comprehensive power supply database on the internet and their recommendations can be trusted. 660 Sli will not max that power supply. Also when Nvidia or Amd or even a site like Realhardechx makes a recommendation they have to assume you have a low quality "generic" power supply that does not really produce it's rated power. The Seasonic is a Seasonic and they are the best. A high quality unit like that can actually provide more wattage than it is rated at.

jnkweaver · May 2, 2013

Let me add to the confusion by adding a third card. the XFX Gold 750W is $110 after MIR with free shipping. XFX uses all Seasonic supplies. http://www.newegg.com/Product/Product.aspx?Item=N82E16817207029

fixer762 · May 2, 2013

Either a 650W to 850W gold or platinum rated PSU from Corsair or Seasonic will serve you well. I like my Seasonic X850 850W PSU.

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Is this a Sufficient PSU?

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