XFX PRO 550W with R9 280X

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raiqed

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Nov 8, 2013
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i was wondering if my PSU would be able to power the R9 280X
i was looking at the 3GB asus dc2 edition.

my pc specs are:

cpu: fx-6300
motherboard: asrock 970 extreme 3
psu: xfx pro 550w

thanks in advance!
 
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Dblkk

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Oct 30, 2013
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if you google that card, it shows that load power consumption is 300w, give or take 50w with spikes and such. Your cpu is rated at 120w, give or take as well. Then add your motherboard, fans, hhd, disk drives. Its close. The cpu and gpu take about 450w by themselves, factor in about 50w for everything else in your system typicaly, and your at 500w. That is really close, i'd personally upgrade, but typically if its not enough it will at worst just shut down your computer, otherwise just give your warnings and glitch out. Thats also if you dont overclock your cpu or gpu.
 
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Dblkk

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Power consumption Radeon R9-280X done on the mis 280x so should be very similar.
http://www.guru3d.com/articles_pages/msi_radeon_r9_280x_twinfrozr_gaming_oc_review,8.html

System in IDLE = 121W
System Wattage with GPU in FULL Stress = 350W
Difference (GPU load) = 229W
Add average IDLE wattage ~10W
Subjective obtained GPU power consumption = ~ 239 Watts
Mind you that the system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is a calculated value not a precise measurement, albeit a very good one.

AMD R9 280X - On your average system the card requires you to have a 550 Watt power supply unit.

 
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Dblkk

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http://static.techspot.com/articles-info/586/bench/Power.png

This bench test shows that under full load, op's CPU uses 225w. So if you were to add total full stress under both CPU and gpu, that's 525w by themselves.

Now yes I agree most games wont fully max a CPU, but they will the gpu. I'm just saying 400w total system power draw is crap. The bench they used to get that used an i5 with a power draw less than half of op's processor. Huge difference.


I never said the card used 400w. I said 300w, which is identical to what your link showed. As for 400w for system, still way undershot. If you saying and agreeing the card will hit 300w by itself. Then that leaves 100w for CPU, motherboard, ram, hard drive, disk drive, fans, and then power supply efficiency.
 
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Dblkk

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Now raiqed, just get and use the card. If you have problems while stressing the gpu, just know that you need to upgrade your pus. With all specs and power draw included your running really close to the limit. The only way to know is to try. You could either just barely make it, or be just over the limit. So before you spend $75 on a new PSU just try yours.
 
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rolli59

rolli59

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Oct 27, 2007
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I just instead of calculating theoretical max did post a link to what it is actually going to be under gaming! The theoretical max no user will see in normal use!
 
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Dblkk

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Yes, but that same website is where i got the 300w under full stress. And also showed that they used an i5 at 110W max to get their 400w total system draw. Which are the numbers your using. Yet op doesnt have a i5 at 110w, he has a amd 6300 at 230W. So im just correcting that site in which your basing your opinion on to incude op's chip and not theirs.

If thats theoretical, then yes, its a corrected theoretical, your answer is also theoretical, but a based on wrong components theoretical.

Might as well give op calculations and recomendations based on different graphics cards to use for his build then while were at it, no?
 
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Dblkk

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http://www.techspot.com/review/727-radeon-r9-290x/page10.html

this link shows that an i7 4770k and a amd r9 290x total system power draw at 2550k resolutions is only 300W.
So this is tested using higher power consuming parts, yet uses 1/3 less power. ????

Not trying to sound like a dick or snob, just trying to fully explain to op. I no offense dont believe that a card rated to draw more than 300w by itself, can while being paired with a top end i7 have a lower power draw.

And OP!

I again state, you should be fine. Try it is the only way to know for sure.
My 'theoretical' power draw is borderline on your psu.
So try it, if it doesnt work, then you know what you need to do.
 
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rolli59

rolli59

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Anands test system is LGA 2011 with I7 4960X and it is measured system load at the plug with this setup http://anandtech.com/show/7400/the-radeon-r9-280x-review-feat-asus-xfx/8
OP's question was simple can I run the 280X on that PSU! Which he can!
 
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Daeranystle

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Jun 2, 2014
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The recommended is 750w read it somewhere, MSI version tho, which already comes overclocked.
 
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toyftw

toyftw

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Jul 29, 2012
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Hi - You read the 750w Pwr requirement from guru3d, but that was for Crossfire not single card.

To add to what rolli said above - a good quality 550w unit will run a system with one R9 280x,
the highest full stress sys pwr consumption I've seen is Har Ocp's test of the
Sapphire Toxic 280x OC'd at 447w. The other R9's typically run <400w under full stress.
 
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