HD7950 HIS IceQ Boost or Gigabyte GV-R795WF3-3GD

[protomog]

Hello, everyone. I'm going to be purchasing a 7950, but I'm not exactly sure which model to go with.
I've come down to choosing between these two:

GIGABYTE GV-R795WF3-3GD Radeon HD 7950 3GB

or

HIS IceQ Boost Clock H795QC3G2M Radeon HD 7950

Both are around the same price range, so that's no problem.
I don't plan on overclocking the cards, so the ICEQ might be a better choice.
That said, I'm not familiar with the HIS brand and I've heard the boost cards have been having some issues.

Also, beyond that, I was wondering if my 520W PSU would be enough to power the 7950.

Here's my build: http://pcpartpicker.com/p/yf8H

I used PC Part Picker to make it easier to share and just chose one of the two cards above.
Regardless of which card I choose, the estimated power is at 404W.
As a general rule, I usually take calculator results like that and add 100 on just to be safe.
That said, I know the 7950 is pretty heavy.
Would I have enough?

Thank you for your time and help.

EDIT: Also, if you have suggestions for another card, let me know, as well.

 

[EzioAs]

That psu is enough. I would avoid any overclocking in the meantime though.

Among those two, personally I'd choose the Gigabyte card as I've seen the Windforce cooler getting pretty great review. Haven't really seen much review on HIS cards.

Would you consider taking a look at Sapphire Vapor-X 7950? They're pretty good as well

 

[protomog]

That psu is enough. I would avoid any overclocking in the meantime though.

Among those two, personally I'd choose the Gigabyte card as I've seen the Windforce cooler getting pretty great review. Haven't really seen much review on HIS cards.

Would you consider taking a look at Sapphire Vapor-X 7950? They're pretty good as well

Hmm.
Alright.

Is the Sapphire Vapor-X worth the extra $25?
I don't have much experience with their products.
I usually just roll with Gigabyte.

EDIT: Also, just to make sure, you mean this card, right?
SAPPHIRE Vapor-X 100352VXSR Radeon HD 7950 3GB

EDITx2: Actually, I think I'll just roll with the Gigabyte card.
I can get it at a cheaper price, it has good reviews, and I can still get it with the three free games at SuperBiiz (Mind you, I'm actually interested in these games, as well).
I lose out on a frame or two of performance here or there, but I think I can deal with it.
Thank you for your help, EzioAs.

 

[protomog]

Best answer selected by protomog.