what psu for r9 280x crossfire build ?

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jimski53

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Apr 29, 2014
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Hi
I got my eye on a psu but want some opinions tell help me .
what psu should i get to run a build im planning with two r9 280x in crossfire system specs below and thanks for any help pcpartpicker state 700 watts ish but im not sure how much headroom over that i should aim for i know they over estimate anyway but dont wanna be working psu harder than is optimal or go ott
Thanks in advance
17 4790k
8 gb kingston hyper 1866mhz
maximus ranger
1tb hybrid x 2
256 gb ssd
 
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JackNaylorPE
http://www.guru3d.com/articles_pages/asus_radeon_r9_280x_top_review,8.html

This is Guru3D's generic power supply recommendation for the R7 and R9 series:

AMD R7 260X - On your average system the card requires you to have a 450 Watt power supply unit.
AMD R7 260X Crossfire - On your average system the cards require you to have a 650 Watt power supply unit as minimum.

AMD R9 270X - On your average system the card requires you to have a 500 Watt power supply unit.
AMD R9 270X Crossfire - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

AMD R9 280X - On your average system the card requires you to have a 550 Watt power supply unit.
AMD R9 280X Crossfire - On your...
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JackNaylorPE

JackNaylorPE

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Oct 30, 2004
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http://www.guru3d.com/articles_pages/asus_radeon_r9_280x_top_review,8.html

This is Guru3D's generic power supply recommendation for the R7 and R9 series:

AMD R7 260X - On your average system the card requires you to have a 450 Watt power supply unit.
AMD R7 260X Crossfire - On your average system the cards require you to have a 650 Watt power supply unit as minimum.

AMD R9 270X - On your average system the card requires you to have a 500 Watt power supply unit.
AMD R9 270X Crossfire - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

AMD R9 280X - On your average system the card requires you to have a 550 Watt power supply unit.
AMD R9 280X Crossfire - On your average system the cards require you to have a 750 Watt power supply unit as minimum.

If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina.
Click to expand...

I'd do 750 for stock system, maybe 850 if going for big OCs....best quality in group at top.

Seasonic X Series
============================
Seasonic M12
EVGA G2 or P2
Corsair AX, HX 650 - 850
============================
Seasonic S12
Corsair Tx V2
XFX Core Edition
 
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