[SOLVED] Crossfire RX 480/580 4gb PSU recommended ?

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Michalcin

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Oct 1, 2015
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I have a rx480 4gb (asus dual oc) and rx 580 4gb (SAPPHIRE NITRO+).
What psu would you recommend me? PSU 650 or 700W? Corsair CX Series CX650W?

My specs:
Ryzen 1600
asrock b350m pro4
8gb ram
Corsai CX450M
 
Solution
vaughn2k
The RX 580 TDP is 185watts (~17A), and RX 480 is 160watts(~14A), so a least you need a 12V rail which has a total of 31A. Suppose you need to operate around 80%, therefore you need a 40A 12V rail.
Therefore I think you should use greater than 700Watts power supply.
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vaughn2k

vaughn2k

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Aug 6, 2008
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The RX 580 TDP is 185watts (~17A), and RX 480 is 160watts(~14A), so a least you need a 12V rail which has a total of 31A. Suppose you need to operate around 80%, therefore you need a 40A 12V rail.
Therefore I think you should use greater than 700Watts power supply.
 
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