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Will this PSU be able to handle my particular GPU?

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  • Power Supplies
  • GPUs
  • Build
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Last response: in Components
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January 28, 2012 2:18:52 AM

I've purchased THIS GPU and I am trying to pick an appropriate PSU for my build (this will be my first build). The Sapphire support page reads that a 500W PSU is required. With that in mind, I REALLY want to put THIS PSU in my rig based on the quality, price, quietness, and 80+Gold rating. So what do you guys think? I've read that a lot of builders overestimate their power needs and put in more PSU than they really need. I have a conservative build including a i5-2400S using the stock cooler, 1 HDD, 1 SSD, 1 optical drive, and maybe a front panel card reader.

My second choice for this build is this: PC Power and Cooling Silencer MK III PPCMK3S500 500W ATX12V v2.3 80 PLUS BRONZE Certified Modular Active PFC Power Supply

Thanks in advance for any feedback.

More about : psu handle gpu

January 28, 2012 2:32:27 AM

You are good. The i5 will use 65W max, and the 6870 150W max. That leaves plenty of room for the other components. Your power draw should be around 225W maxed out.
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a b ) Power supply
January 28, 2012 2:42:02 AM

^ This. Can't beat Seasonic (although check "Who's Who in Power Supplies", that Rosewill looks almost like a Seasonic built supply, Rosewill is only a label)
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January 28, 2012 2:45:14 AM

COLGeek said:
Check out this one:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I just bought and installed one of these. It is whisper quiet, modular and is a Seasonic. They make GREAT stuff!


I think I had seen that one in my search....I'm seeing PSUs in my sleep I've looked at so many! I want a single +12V rail though.
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a c 1205 ) Power supply
January 28, 2012 2:47:22 AM

For a system using a single Radeon HD 6870 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 28 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.

For a system using two Radeon HD 6870 graphics cards in 2-way CrossFireX mode AMD specifies a minimum of an 600 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 43 Amps or greater and have at least four 6-pin PCI Express supplementary power connectors.

The Rosewill CAPSTONE Series 450W (CAPSTONE-450), with its +12 Volt continuous current rating of 37 Amps and two (6+2)-Pin PCI Express supplementary power connectors is sufficient for your system configuration using only a single Radeon HD 6870.

The Rosewill CAPSTONE Series 450W (CAPSTONE-450) uses Super Flower as its OEM.
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a b ) Power supply
January 28, 2012 2:51:08 AM

Super Flower isn't Seasonic, but they are a secretly good OEM.
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January 28, 2012 3:00:18 AM

Best answer selected by Cla55clown.
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a b ) Power supply
January 28, 2012 9:11:20 AM

This topic has been closed by Mousemonkey
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