Upgrade Question (Xfire or brand new card)

itouchedyou

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Aug 10, 2010
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Hi guys, I've been out of the tech loop for the last few years and I'm due an upgrade on my system.

My current rig:
CPU: AMD Phenom II X6 1055T
MOBO: ASUS Crosshair IV Formula
RAM: 4GB DDR3 1800
GFX: XFX Radeon HD5850
PSU: Corsair HX750W

I want to upgrade my graphics card and have two options:

-ditch the 5850 and get a current generation card (a 7970 would set me back ~$550 brand new)
-buy a second hand 5850 and run them in crossfire (a quick check on local listings shows I can pick one up for ~$100)

Would anyone recommend buying the new card for 5x the price over picking up the second hand card?
Are the setups comparible in terms of firepower?


Thanks for any input.
 
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