Power supply help! w/ gpu

[SuddennN]

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=N82E16820145316&Tpk=2133%20dominator)

msi MB 890fx (http://www.newegg.com/Product/Product.aspx?Item=N82E16813130274)

Amd 1090T (http://www.newegg.com/Product/Product.aspx?Item=N82E16819103849&cm_re=amd_1090t-_-19-103-849-_-Product)

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!

 

[coozie7]

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.

 

[wa1]

^+1

 

[SuddennN]

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

 

[SuddennN]

Best answer selected by SuddennN.

 

[Maziar]

This topic has been closed by Maziar