GPU upgrade, crossfire vs top end card?

GreatBigNoob007

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Jan 9, 2012
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Hello and thank you for viewing and possibly helping me with my gaming GPU problem.

I have a 2-year old build;

i5-2500k @3.30Ghz (built in over clock)
8G corsair vengeance RAM
Radeon HD 6970 2GB (not made anymore)
http://
mother board: P8 P67-PRO
OCZ 850 W power supple
120 SSD
500 G harddrive


I would like to boost my GPU performance. Should/can i buy a 2nd 697 radeon and run in crossfire? will my PSU be able to handle that? I wish to keep this build for another year maybe 2 so I will be upping the RAM, and need to up the GPU.

I appreciate your help thank you.
 

GreatBigNoob007

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Jan 9, 2012
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this is a bad question but, how will i know what the best possible card i can support its?

with P8 P67-PRO and a 850 Wh PSU

 

GreatBigNoob007

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Jan 9, 2012
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would any of you suggest a card? should i go to a 4g card? I have a huge tower so no problems with physical size. $400. is max. not sure if i should even spend that since im still running a i5-2500k...