Sign in with
Sign up | Sign in
Your question

Power Supply - Dual 5850

Last response: in Graphics & Displays
January 19, 2010 6:02:55 PM

Hi Everyone,

I'm currently putting together a future proof PC and I'm only going to purchase 1x5850 ATI card for 299$ and I'll get a 2nd once the price lowers (and/or once the games demand it). I was wondering if anyone could recommend a good power supply.

ASUS M4A79XTD EVO AM3 AMD 790X ATX AMD Motherboard (dual x8 link)
AMD Phenom II X4 965 Black Edition Deneb 3.4GHz
4gig G-Skill compatible ram (QVL)
Eventually Dual ATI cards (2 x Sapphire 5850)
1x250gig SATA drive
1x200mm fan
5x120mm casing fans
Note: I'm not interested in overclocking at the moment.

I'm looking at ordering this:
- Antec TruePower New TP-650 650W Continuous Power ATX12V V2.3 / EPS12V V2.91 SLI Certified CrossFire Ready 80 PLUS BRONZE Certified

If the online watt calculator is accurate then it shows that I only require 425 watts. Is there anything better than Antec that I should be looking at both quality and price-wise?

Thanks in advance.

More about : power supply dual 5850

a b U Graphics card
January 19, 2010 6:33:10 PM

min 600w according to specs for 5850 crossfire, Id go with either corsair, pc power and cooling or seasonic. tho antec is good in my book to.
January 19, 2010 7:38:56 PM

How do you guys work the connections with a 600W PSU? They tend to have only 1 or sometimes 2 6-pin PCI-E connections and he will need four for two 4850's right. Use 4-pin to 6-pin adapters??
Related resources
a b U Graphics card
January 19, 2010 7:58:50 PM

the brands we mentioned have up to four 6pin / four 6+2pin / 2 6pin and 2 8pin

just go to and check the specs of each power supply to see how many and what combination of 6/8pins you need.
a c 261 U Graphics card
a c 139 ) Power supply
January 19, 2010 8:13:06 PM

The AMD system requirements for dual 5850 cards is 600w and 4 6-pin pci-e power connectors:

The TP-650 will be fine.

As others have mentioned, similar psu's from Corsair, Seasonic, and PC P&C will also be good.

Do not compromise on psu quality.