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What power supply wattage needed for crossfire radeon 7870 and 7950?

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July 25, 2012 3:13:34 PM

Building new rig going to crossfire in the future. Going to be overclocking the cpu from the start to 4.2 ghz. How much wattage would you recommend for crossfire on a msi radeon 7870 and msi radeon 7950?

i5-3570k
z77 extreme4
128gb ssd
8gb ddr3 ram
windows 7

currently for power supply i have corsiar hx750 but i am building 2 rigs one will crossfire the 7870 the other the 7950 in the future wondering if i can get a hx650 for the 7870 xfire one.

thx

More about : power supply wattage needed crossfire radeon 7870 7950

a b ) Power supply
July 25, 2012 3:56:48 PM

id get 750w for both to be kinda on the safe side.

i would get a xfx xxx 750w psu instead since it is cheaper than the hx750w and just as good. they sell for 104.99 after MIR at us.ncix.com
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September 7, 2012 4:52:19 PM

Sorry for a bump, but would a 650 be enough for xfire 7870s?
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