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Will 800 Watts be sufficient enough for two r9 280x's in crossfire?

Tags:
  • Power Supplies
  • Crossfire AMD Radeon
  • Crossfire
  • AMD
  • Graphics
  • Graphics Cards
  • Radeon
Last response: in Graphics & Displays
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October 15, 2013 11:03:15 AM

I currently have a Corsair GS-800W PSU and was wondering if that would be sufficient enough to run two r9 280x's in a crossfire setup?

My current setup is:
AMD FX-8350 (with cooler master hyper 212+ cooler)
1TB WD Blue HDD
(2x) Gigabyte 7870's Ghz Edition (Crossfired)
Case has 3 fans total (2 200mm and 1 120mm)

Just wondering if with my current setup i'd have enough juice to power two 280x's?

More about : 800 watts sufficient 280x crossfire

Best solution

a b ) Power supply
a b U Graphics card
October 15, 2013 11:07:02 AM

yesit's enough.

280x's pull slightly less wattage than the 7870ghz.

so certianly you'll be fine as is.
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a b ) Power supply
a b À AMD
a c 92 U Graphics card
October 15, 2013 11:29:32 AM

Absolutely, you'd be fine with one a few notches lower, but that would give you breathing room, so i'd go for it.
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October 18, 2013 12:19:46 PM

You can see a value here: AMD Radeon R9 270X CrossfireX and R9 280X 4-way CrossfireX review @ http://bit.ly/1aWtthX
The test system has a bigger intake than yours.
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October 18, 2013 12:37:47 PM

Alex-Daniel Neacsu said:
You can see a value here: AMD Radeon R9 270X CrossfireX and R9 280X 4-way CrossfireX review @ http://bit.ly/1aWtthX
The test system has a bigger intake than yours.


This has me a little worried after reading that, his power consumption for the whole system is at 900 watts under FULL load for the 2x 280x's. Do you think I should consider an upgrade on the PSU before buying the cards? I'd rather be safe than sorry even if it means putting off buying the cards until i can get a new PSU
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October 20, 2013 12:46:22 PM

RollTide615 said:
Alex-Daniel Neacsu said:
You can see a value here: AMD Radeon R9 270X CrossfireX and R9 280X 4-way CrossfireX review @ http://bit.ly/1aWtthX
The test system has a bigger intake than yours.


This has me a little worried after reading that, his power consumption for the whole system is at 900 watts under FULL load for the 2x 280x's. Do you think I should consider an upgrade on the PSU before buying the cards? I'd rather be safe than sorry even if it means putting off buying the cards until i can get a new PSU


in the same position as you right now :/  graph worries me too
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November 15, 2013 3:40:46 AM

I have 2* 280x from Gigabyte with a Corsair RM850 PSU ( Gold Eficiency), and the system works just fine even at full load. The rest of my rig is as it follows : Proc - Phenom II 1055T , 2*2GB of KingMax 2200 MHZ XMP RAM , 3 HDD,1 SSD, 2 DVD-writers motherboard GA-790FXTA-UD5, a Creative X-FI sound card and a few fans. The only problem that I had was the temp. The two crossfire card are very close and the temp is a bit high.

Hope this helps you. I think you will have no problems with the PSU and there is no need to spend money on a new one, because, a good PSU that`s over 800 has a big price.

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