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What power supply do i need for 2 R9 280 CF

Tags:
  • Intel i5
  • Computers
  • Crossfire
  • Gigabyte
  • Power Consumption
  • Systems
  • Motherboards
Last response: in Systems
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August 23, 2014 12:54:34 AM

Hi guys, i'm upgrading my old computer and getting a i5 4690k, the gigabyte GA-Z97 HD3 motherboard, and 2 R9 280's (windforce), i am wondering which power supply to get, my options are
- silverstone strider essential 700w gold $119
http://www.pccasegear.com/index.php?main_page=product_i...

-cougar CMX850 $129
http://www.pccasegear.com/index.php? main_page=product_info&cPath=15_535&products_id=25153

Enermax RevolutionXT 730W gold $129
http://www.pccasegear.com/index.php?main_page=product_i...

cooler master v750 gold $139
http://www.coolermaster.com/powersupply/gaming-v-sm-ser...

corsair CX750 $135
http://www.pccasegear.com/index.php?main_page=product_i...

More about : power supply 280

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August 23, 2014 1:28:02 AM

stubbornness said:
gamer1357 said:
According to this, http://www.bit-tech.net/hardware/graphics/2014/05/19/am..., they each use up 300 watts under full load. So 750 watt should suffice but 850 watt would be safer.

This psu would be perfect.
http://pcpartpicker.com/part/evga-power-supply-220g2085...

Thats $150 here in australia, im looking for the cheapest sufficient one


If you cant afford that than i would go with the cooler master v750 you mentioned above. Its good quality and 750 watts should be enough as long as there is no serious overclocking on the gpu.

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a c 86 V Motherboard
August 23, 2014 1:40:46 AM

a 750 watt psu will be enough for your system ...250w TDP x2=500w processor 88 watt.......plus other parts say 100 watt......so a good 750 watt would be enough but hence you are going to oc the processor just to keep it safe get a 850 watt psu so that u could have some extra headroom......http://au.pcpartpicker.com/part/evga-power-supply-220g2... but if u can spare some more money then get this http://au.pcpartpicker.com/part/evga-power-supply-120g2...
its a 1000 watt psu and it comes with 10 years of warranty so that's a long time......
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August 23, 2014 2:27:33 AM

The 850 watt power supply is cheaper, would you reccomend it over the enermax 730 watt.
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a c 81 V Motherboard
August 23, 2014 2:52:02 AM

^ No, the cx series aren't meant for high end components, they'll break easily, so it's safer to get the enermax
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