Corsair TX-650 enough for crossfire/sli?

[amirp]

I have a corsair TX-650 , with 52 amps on a single 12volt rail,

Would I be able to power two 6850's in crossfire with overclocking? (so essentially two 6870s)

Or from the green team would I be able to power two gtx 560 ti's in SLI with overclocking?

Note I also plan to overclock my cpu to around 4ghz

System specs:
i5-2500k
Asus P8P67 pro
Antec 300 (2 stock fans only)
8gb (2x4gb 1600mhz ddr3 ram)
1 HDD (WD caviar black)


Thank you....

 

[eloric]

Agree with ct1615.

Used this to help figure it out: Antec Power Supply Calculator Used 80 percent utilization, 25 percent capacitor aging, 4 led fans, plus the specs you provided.

Came up with 515W for the OC'd 6850 and 562W for the 560Ti cards.

 

[obsidian86]

Be sure to get the tx v2

 

[amirp]

Thanks for the replies, ill probably play it safe and go with two 6850s then since ati seems to use less power. I dont even need the 560ti's anyways... its just that I found the msi hawk one on kijiji for $200... in Canada so its a good price, but somebody beat me to it unfortunately.

What is the difference in the V2? I bought mine a while ago so its V1.
Is there anything in particular wrong with the V1? lol ... now I am worried...

 

[davcon]

Thanks for the replies, ill probably play it safe and go with two 6850s then since ati seems to use less power. I dont even need the 560ti's anyways... its just that I found the msi hawk one on kijiji for $200... in Canada so its a good price, but somebody beat me to it unfortunately.

What is the difference in the V2? I bought mine a while ago so its V1.
Is there anything in particular wrong with the V1? lol ... now I am worried...

There's nothing wrong with a TX650 V1 !
No worries

 

[obsidian86]

If you already got the v1 there isn't a problem.but if you buying one now the v2 is the one to go for