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Power supply help! w/ gpu

Tags:
  • Graphics Cards
  • GPUs
  • Power Supplies
  • Graphics
  • Product
Last response: in Graphics & Displays
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November 27, 2010 9:04:16 AM

hey guys i was wondering if i could grab some of your opinions. i am running

8g of dominator - GT 2133 (http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

msi MB 890fx (http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

Amd 1090T (http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

and wanting to purchase 6870.

i have for my psu - CM Real Power Pro 750w (http://www.coolermaster.com/product.php?product_id=2552)

im pretty sure i can get away with the single 6870 but i would like to make sure. and when i do go CF with the two cards, what kind wattage you guys recommend I should be looking at?

Thanks for the help! :) 

More about : power supply gpu

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a c 198 U Graphics card
a b ) Power supply
November 27, 2010 10:13:52 AM

As long as you do not get into heavy overclocking of the entire system that PSU is fine: It has both the Wattage and amperage needed to run dual HD6870 cards.

http://extreme.outervision.com/PSUEngine

The linked calculator does not have the HD6870 in its database but even using dual HD5870s the maximum wattage is under 570 Watts.
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a c 190 U Graphics card
a b ) Power supply
November 28, 2010 9:30:58 AM

^+1
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November 28, 2010 11:58:20 AM

thank you very much! once i put all my other goodies in it came out to 723 minimum. and i don't plan to over clock anytime soon with this rig. no need :) 

also this is a little off topic but i have heard constant debates between the 6870 and 5870. and most seem to favor the 5870. i don't seem to know why considering 6870 out performs it in the 3D benchmarks and is slightly less , any idea?

http://www.videocardbenchmark.net/high_end_gpus.html
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December 8, 2010 5:54:40 AM

Best answer selected by SuddennN.
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a c 169 U Graphics card
a b ) Power supply
December 8, 2010 6:25:16 AM

This topic has been closed by Maziar
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