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Best Power Supply For My New HD4870 X 2.

post #1 of 2
9/30/12 at 5:48pm
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Hi there. I was wondering what would be my best choice for a new power supply for my new HD4870X2. I am doing a new build and will probably be using a95 to 125w cpu Here is the info page on my video card.
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814150349
I found a cheap 750W 80plus power supply at Staples but not sure if I can trust it. I think it may have 4 -12 volt rails, but not sure I can not find much information on this product.
http://www.staples.ca/ENG/Catalog/cat_sku.asp?CatIds=&webid=325601&affixedcode=WW
I have heard that single rail power supplies are better for high power graphic cards, and I know this new one uses a lot of power. Any help would be appreciated.
Edited by skrinkaman - 9/30/12 at 6:05pm
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post #2 of 2
9/30/12 at 6:59pm
First of all, a 4870x2 would hardly be considered new since it was released around four years ago. Regardless, a PSU like this would be fine for the system: http://www.newegg.ca/Product/Product.aspx?Item=N82E16817182068

Also I want to add that single and multi-rail is not something to be concerned about when regarding power output or performance of a PSU. Having multiple 12v rails is just a safety net in the event that a short occurs so that the PSU will shut down before the power shoots too high to damage any components. It's only really necessary on PSU's north of 650 watts though because of the amount of power available on the 12v rail.
Edited by bR0ken_pr0Jector - 9/30/12 at 7:02pm
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