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i have a 300 watts PSU,and i'm considering buying an ATI HD4670,will my PSU handle that card properly?

I have an AMD Phenom II X3 720 and a gigabyte GA-MA790GP-UD4H mobo

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up vote 5 down vote accepted

For future reference on the topic:

A handy PSU calculator courtesy of

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in a word: no.

ATI Radeon™ HD 4600 Series System Requirements:

400 Watt or greater power supply (550 Watt for ATI CrossFireX™ technology in dual mode) is recommended

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+1 for providing a source. – TFM Aug 29 '09 at 2:26

It probably will not handle any current video card. That's not to say that maybe you couldn't find an older card that would work with your psu, perhaps an older pci. I doubt it will have the performance you are looking for though. Power supplies are fairly inexpensive so upgrading it usually doesn't kill your wallet and it's a good place to plan for the future also. The more steady power you have the better. Hope that helps.

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It's certainly better to have a slightly overrated power supply rather than an underrated one, as the latter could result in an blown PSU or even damaged components.

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Contrary to what most others say, I'd say this will work fine. I have a 4670 with a 300 watt PSU [I'm pretty sure that's what it is anyway :p] and it works fine. The 4670 doesn't need a PCIE power connector, it uses solely what it gets from the PCIE port.

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and what about performance? can you provide benchmarks for your machine? – Mahmoud Hossam Aug 29 '09 at 5:27

4670 is rated for only 59 watts max. It's a very efficient card.

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