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Is Corsair CS 650 M enough to power XFX R9 280 DD 4 GB?

Tags:
  • XFX
  • Amazon
  • Corsair
  • Power
  • Graphics
Last response: in Graphics & Displays
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August 28, 2014 4:54:37 AM

I'm considering buying this card : http://www.amazon.co.uk/gp/product/B00J44WVYG/ref=ox_sc...

On Amazon it says the wattage for it is 750W, however, on some benchmark sites the real wattage sits far bellow it, this one says the cards max is 305W : http://www.bit-tech.net/hardware/graphics/2014/05/19/am...

I will be running an intel i5 4670k, an a couple of Noctua 140mm PWM fans, so I guess that won't add much to the wattage.

I hope someone can help me out with this.

More about : corsair 650 power xfx 280

August 28, 2014 5:02:55 AM

Yes.
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August 28, 2014 5:04:04 AM

yep, should be fine,
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August 28, 2014 5:08:38 AM

Yeah you'll be covered with plenty of power with that one.
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Best solution

August 28, 2014 5:15:04 AM

jplv1 said:
On Amazon it says the wattage for it is 750W, however, on some benchmark sites the real wattage sits far bellow it, this one says the cards max is 305W : http://www.bit-tech.net/hardware/graphics/2014/05/19/am...

Nope, that review says the entire system is drawing 305W from the wall. Power supplies are rated by what they can deliver to components, which does not include whatever is lost inside the power supply itself. So we first have to convert the 305W at the wall to the wattage the components draw from the power supply.

Jonnyguru found that PSU to be about 90% efficient when drawing ~360W from the wall, so let's just use that as an estimate. Then 305W x 90% = 275W of power draw by components. But that's from ALL the components in the system, including an overclocked Core i5-3570K.

So we should definitely subtract more than 50W to get the power consumption of the card itself. Exactly how much is hard to say. But it's a safe bet that the R9 280 was drawing less than 225W at full load in that review.
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August 28, 2014 5:46:43 AM

Sakkura said:
jplv1 said:
On Amazon it says the wattage for it is 750W, however, on some benchmark sites the real wattage sits far bellow it, this one says the cards max is 305W : http://www.bit-tech.net/hardware/graphics/2014/05/19/am...

Nope, that review says the entire system is drawing 305W from the wall. Power supplies are rated by what they can deliver to components, which does not include whatever is lost inside the power supply itself. So we first have to convert the 305W at the wall to the wattage the components draw from the power supply.

Jonnyguru found that PSU to be about 90% efficient when drawing ~360W from the wall, so let's just use that as an estimate. Then 305W x 90% = 275W of power draw by components. But that's from ALL the components in the system, including an overclocked Core i5-3570K.

So we should definitely subtract more than 50W to get the power consumption of the card itself. Exactly how much is hard to say. But it's a safe bet that the R9 280 was drawing less than 225W at full load in that review.


So I'm guessing that PSU will leave plenty of room if I decide to upgrade the GPU or CPU in the future, right?
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August 28, 2014 5:48:19 AM

Definitely. It's plenty for any single-GPU graphics card combined with pretty much any CPU.
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August 28, 2014 6:16:26 AM

Sakkura said:
Definitely. It's plenty for any single-GPU graphics card combined with pretty much any CPU.


Ok then, assuming the 650 watts version really is enough, if I go with the 600 watts version, like the CX 600 M, will it still perform fine and give me ample room for upgrades? So I can save a couple of pounds.
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August 28, 2014 6:38:04 AM

Yes.
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August 28, 2014 5:38:22 PM

The CX600M is quite different (not just the same platform with 50W less), but still sufficient.
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