Crossfire xfx power & benefit

[reddgsx]

wanting to add 4gb ram & another 5770 xfx to my system. Wondering if the additional 5770 is worth it? Also if my power supply is good enough...

cpu: i7 920
gpu: 5770 xfx
ram: corsair xms3
HDD: x2 seagate barracuda 160 & 500
MB: msi x58 platinum
power supply: ultra 650 watt
os: win 7

thank you

sorry if this is in the wrong section, just seemed like the right place with the way the topics and subtopics are set up...

 

[constepatdyak]

Your psu might not be enough...Try a 750W.

Also I would just use the money and buy a amd 7xxx series card.

 

[reddgsx]

Thank you good sir for your feedback, I will look into the 7xxx series.