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Is a 650W power supply enough for a sapphire tech r9 280x?

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  • Power Supplies
  • Graphics Cards
  • Sapphire
  • Components
Last response: in Components
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July 13, 2014 4:56:51 PM

Evening all,

Intend to use this psu: http://www.dabs4work.ie/products/xfx-650w-ultra-quiet-8...

With this GPU: http://www.dabs4work.ie/products/sapphire-technology-am...

Along with this I have an fx-8320 in the basket. Will the psu be enough to run all of these comfortably? Should I go up to 750w?

Please let me know what you think.

Lorcan.

More about : 650w power supply sapphire tech 280x

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a c 2487 ) Power supply
a c 928 U Graphics card
July 13, 2014 4:58:09 PM

Yes that XFX has more than enough power for the card and your setup

A Radeon R9-280X needs 30 amps on the 12v rail and a 550 watt power supply with at least 2 - PCIE 6+2 power connections.


The XFX is more than enough power to run the card with your specs. it has - 54 AMPS ON THE 12V RAIL , and 3 PCI-Express Connections
3 x 6+2-Pin
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a b ) Power supply
a b U Graphics card
July 13, 2014 5:07:11 PM

Almost no reasonable computer build needs more than 400W at stock clocks unless doing SLI/CF.
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July 13, 2014 5:22:32 PM

Ok that sounds good. My only concern was that the website I was buying it from said minimum PSU required for the card was 750W, plus I hear the 8320 is very power hungry.

Thanks for the quick responses!
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a c 2487 ) Power supply
a c 928 U Graphics card
July 13, 2014 5:23:30 PM

That's all inflated , you only need 650w it's more than enough.
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July 13, 2014 5:26:21 PM

Ok thank you for your answer :) 
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a b ) Power supply
a b U Graphics card
July 13, 2014 5:34:15 PM

Lorcank95 said:
the website I was buying it from said minimum PSU required for the card was 750W, plus I hear the 8320 is very power hungry.

Yes, AMD's upper-range CPUs are power hogs. But we are talking 125W worst-case for the FX83xx unless you try cranking it to 5GHz and another 230W for the GPU. Add the rest of the system and we get ~400W worst-case total without OC.

Add 40% as a safety margin since operating PSUs at close to 100% is usually not good for their health and efficiency, you get 560W as my fair recommendation. One popular unit around that power is the XFX TS 550 which is one of those popular re-branded Seasonic designs. If you plan to overclock, you might want to add another 100W on top of that. You can find 620-650W variants of Seasonic's S12II for around $75.
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