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Is my PSU adequate for Radeon 7950?

Last response: in Graphics & Displays
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June 18, 2012 3:55:11 AM

Hey guys,
I placed an order for XFX 7950 Doubld D(not black edition) but I am getting some varying information on the PSU requirement. The GPU manufacturer is stating minimum of 500 watts but some review sites are recommending 700+ watts. My PSU is Seasonic 620 watts.

Here's my complete system set up:

CPU: i5-3570k overclocked to 4.4Ghz
Cooler: Hyper 212 EVO, single fan
Mobo: Gigabyte z77x-D3H
RAM: Crucial 8GB(2 sticks) 1600 DDR3 CL8
Case: Antec One. 5x 120mm case fans. No case lights. 1 DVD-RW drive. 1 PCI wireless card.
Hard drive 1: Crucial M4 128GB SSD
Hard drive 2: Seagate Barracuda 7200RPM 2TB
GPU: XFX Double D FX-795A-TDFC Radeon HD 7950 3GB
PSU: SeaSonic M12II 620 Bronze 620W

I do plan on overclocking the 7950.
Does my PSU have enough power for all this?

Thanks.
a b U Graphics card
June 18, 2012 6:26:11 AM

No doubt it can. 620W is fine & Seasonic is a great brand so no worries.
Perhaps the 700W requirement that you read is for 2 x 7950. That makes sense but on a single 7950, it does not.
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a c 84 U Graphics card
June 18, 2012 7:02:35 AM

sesonic is an good unit it can handle that card with an oced cpu first of all the hd 7950 doesnt use that much amount of power u will be fine with it.goodluck.:) 
June 18, 2012 7:34:18 AM

Thanks guys.
So there is plenty of power left over even if I decide to OC the graphics card?
I am wondering how tight it will be. I don't want to stress out my PSU too much.

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a b U Graphics card
June 18, 2012 9:10:02 AM
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theonix said:
Thanks guys.
So there is plenty of power left over even if I decide to OC the graphics card?
I am wondering how tight it will be. I don't want to stress out my PSU too much.

There is much headroom even if you OC the CPU & the GPU. For your added peace of mind, you can estimate the power consumption of your PC with the 7950 using this:
http://extreme.outervision.com/psucalculatorlite.jsp
June 18, 2012 10:48:38 AM

Best answer selected by Theonix.
!