Can my PSU handle crossfire?

PlowMe

Honorable
Jan 30, 2013
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0
10,640
Hello,
I have an XFX 550W PSU core edition 80 plus bronze (link: http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=xfx%20550w%20psu&IsVirtualParent=1) and i was wondering if it would be enough to crossfire two 7870 XT's at stock clocks. It comes with two extra 4 pin connectors so i have enough power connectors to plug into it. Do I have enough power with everything else in my system? The rest of my system is as follows....
CPU: Intel I7 3770K running stock
MOBO: ASUS Z87-PLUS
GPU: Sapphire 7870 XT Tahiti stock
RAM: 2 x4GB of G.Skill RIP JAWS
HDD: WD 1TB Blue
CD/DVD: Samsung CD/DVD drive
Case: Rosewill Challenger
(Note: The AMD recommends at least 600W to crossfire 7870's but with everything else I have would i be OK with 50W less?)
 
Solution
the 7870 XTs take more power than the normal 7870s, each card will draw about 200w, so 550w isn't going to cut it. A 750w unit would be what you'd want.