Which 7970 ghz card?

[austin020690]

After a long debate on my next upgrade ive decided on going with an amd 7970 ghz edition card. I have narrowed the decision down to 2 choices:

the xfx double d 7970
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150632

or the saphire vapor x
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202001

Given that the prices are the sames after the rebate, which card would be better?

Also i do not plan to overclock past the factory overclock in the foreseeable future, i would just like to know which card will be running quieter, cooler, and more efficiently/reliably. I also plan to crossfire the cards in a couple months.

Also if anyone could help with my psu, i have ran my hardware through a couple psu estimators with varied results and am not sure if my current psu would be able to handle the card.

I currently have:
amd fx-6100 zambrezi processor (6 core 3.3 ghz)
2 sticks of 4 gb ram
500gb sata hdd
the current psu is a cooler master 600w
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171036

is 600w enough to power my rig with 7970 ghz ed card?

thank you very much for the help

 

[bigcyco1]

SAPPHIRE Vapor-X your powersupply is good enough.

 

[ultrakill]

personaly i would choose the vapor X
SAPHIRE is a good brand
if not the best brand for AMD cards


but i would consider looking after this card a powercolor hd 7970 vortex 2 (NO GHZ EDITION)
but still it is very powerful 175 mhz FACTORY OVERCLOCKED

so 1100mhz engine clock - fore more specs http://www.powercolor.com/Global/products_features.asp?id=411

and it is cheaper than the ghz edition