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PSU for i5 3570k & Radeon 7950

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Hey guys,

I need some advise on what PSU to buy. I would like it to be modular (semi-modular is fine) and I can find a decent deal myself if you can suggest a make/model.

I am going to be using these components:

Case - Antec 900 (4 case fans)

CPU - Intel i5 3570k Ivy Bridge

CPU heatsink - CM Hyper 212 EVO

GPU - either a Radeon 7950 or a GTX 660 ti when it comes out.

As for my mobo, it will be some version of a mid-high range Intel 1155 Z77 chipset board.

Other components include a 120gb SSD boot drive and 1-2 other HDDs.

Thanks for all the help! Let me know if more info is needed.


More about : psu 3570k radeon 7950

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Power supply Master

The size of the psu is gated by the graphics card.
In this case, a 7950 needs a 500w psu with two 6 pin pci-e power connectors. I expect the GTX660 to be similar.
This includes an allowance for a normal complement of other parts.
http://www.amd.com/us/products/desktop/graphics/7000/79...

The first rule for a psu is to buy QUALITY.
My short list would include Seasonic, Antec, PC P&C, XFX, and corsair.

It would not be wrong to overprovision a bit to 600-650w. The psu would operate more efficiently and be quieter.
If you are planning for cf/sli (which I do not much like) then look for a 750w psu.

In a Antec 900, I do not see much value in modular. There are plenty of places to stow the few leads that will be unused.
Also, you will never save enough electricity to pay for a gold rated psu.
I see gold rated and modular as beneficial primarily for small form factor cases.

Here is a seasonic 520w unit for $60:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Here is a 600w PC P&C silencer for $70:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Single 7950 and no OC....550+ watt PS.
Twin 7950 and no OC....650+ watt PS.

600W PC Power and Cooling Silencer Mk3 S600 (Seasonic). 80 Plus Bronze certified. $67 after MIR at NCIX.com
620W Antec HCG-620M (Seasonic). Bronze. $73 after MIR at Newegg.com
650W NZXT Hale82-650-M (Seasonic). Bronze. $85 at OutletPC
620W Seasonic M12II 620 Bronze. $89 at SuperBiiz
750W NZXT Hale82-750-M (Seasonic)....recommended as best bang for the buck. $100 at OutletPC

Dave
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Thanks for all the help guys!

I forgot to mention that I will be OCing, probably with only a single card. If I were to ever SLI/CF, it will be way off in the future. And it is hard to tell which will be more cost effective in the future, single card or dual card. I really don't know at this point, so I'll cross that bridge when I get there.

But, there's a 750W antec on sale right now on newegg for $70 after rebate. There is also a TX650 Corsair for $60 after rebate.

Are those good PSUs for the value? What are the chances of me finding another sale like this?

Thanks!
Power supply Master

ForYourHealth said:
Thanks for all the help guys!

I forgot to mention that I will be OCing, probably with only a single card. If I were to ever SLI/CF, it will be way off in the future. And it is hard to tell which will be more cost effective in the future, single card or dual card. I really don't know at this point, so I'll cross that bridge when I get there.

But, there's a 750W antec on sale right now on newegg for $70 after rebate. There is also a TX650 Corsair for $60 after rebate.

Are those good PSUs for the value? What are the chances of me finding another sale like this?

Thanks!

Either one is a very good psu, and a good value.
Your chances are very good of finding another such sale. The psu market seems to be very competitive.

geofelt said:
Either one is a very good psu, and a good value.
Your chances are very good of finding another such sale. The psu market seems to be very competitive.


Okay then, I see no reason why I need to jump on these deals then. I will wait until closer to when I am going to actually make my build.

Thanks!


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