Power supply for r9 290

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johnv466267

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Feb 17, 2016
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I have a 650w antec psu and I want to add to my system an amd r9 290

My current system consists:

i7 3770
Pny 8gb ddr3
Z77 extreme4 mobo
Cd burner

Would I need to upgrade my power supply?

 
Solution
toyftw


Hi - You have more than enough power and you can OC if you wish.

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toyftw

toyftw

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Jul 29, 2012
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Hi - You have more than enough power and you can OC if you wish.

 
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Chugalug_

Chugalug_

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Jan 28, 2016
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Not so sure about that one, nearing 650w at stock, i'd play it safe and get a 750w.
 
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sammy sung

sammy sung

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May 5, 2014
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The realhardtechx list is very conservative airing on the side of caution with recommended wattage for systems that would be overclocking moderately. With an otherwise stock system 550-600W is more than enough with a reputable continuous supply.
 
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toyftw

toyftw

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Jul 29, 2012
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Not true - plenty of room to OC - It comes down to +12v Rail amps available, a system with onw R9 290
requires 31 +12v rail(s) amps, the Antec 650 depending on which 650 it is has either 50 or 54 amps avail
for the +12v rail(s). Easily enough to OC
 
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turkey3_scratch

turkey3_scratch

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Jul 15, 2014
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It's best to avoid numbers especially talking about exact amperage because the rest of the system has an effect on that requirement. It's best to simply look at reviews of the GPU and see what stress test load is for it. You'd be surprised that most high-end GPUs for brief instances may draw near 400W. Even a GTX 970 has shwon to draw greater than 300W. But these values are unrealistic except in these torture tests, and aren't constant, so it's good to look into normal load under a stress test as a generalization for what type of PSU to buy.

There are real applications that produce real stress. Assassin's Creed Unity is well-known to be one of these.
 
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toyftw

toyftw

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Jul 29, 2012
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There is nothing wrong with talking numbers based on results. I read reviews of the r9 290 from Guru 3d, Anandtech,
Techpowerup, and Tweaktown before I posted, as well as referring to the MSI GPU power equirements forum
before I posted.
 
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J

johnv466267

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Feb 17, 2016
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I dont' plan to overclock... and I don't know how to either.
 
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