Considering getting Crossfire

LimitedWard

Honorable
Dec 15, 2013
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I currently have

MOBO: MSI 970A-G43
CPU: FX-6300
GPU: PowerColor Devil R9 270x
PSU: EVGA 500w 80 plus Bronze
RAM: 8gb G.Skill Ripjaws X DDR3-1866
HDD: Seagate 1TB 7200rpm

in my PC and was considering getting another 270x to run in Crossfire. Assuming I could even fit another graphics card inside my tiny Antec One case, do you believe this is a wise decision based on the PC's current PSU, mobo, etc? Should I get more fans to ensure better cooling (there are currently 2 stock fans on the case plus the stock cpu fan)? Also if I buy another 270x with a lower clock speed, do both cards run at that lower speed?

If I upgrade the graphics at all, I don't want to get an entirely new card because I just built this PC a month ago. I have some money to spend on this, so if you have any suggestions on how I can improve this build, please let me know.