Is the Corsair TX 650m enough wattage to crossfire 2x Sapphire HD 7870 xts?

Taizette · Mar 21, 2014

I dont wanna really save up for an expensive card i want to wait abit for the maxwell nvidia cards for next gen gaming, I have the Sapphire HD 7870 xt I really want to crossfire it with the same gpu i currently have a corsair tx 650m an is this enough to support 2 sapphire hd 7870 xt crossfire setup? because if i were to buy another psu i would just rather buy a brand new gpu as it would be around 500 dollars over anyway any suggestions?

Bad_Kitty13 · Mar 21, 2014

what cpu do you have?

Taizette · Mar 21, 2014

I have an intel i5 3570k o.c to 4.2Ghz

sora · Mar 21, 2014

I personally think it should be enough wattage.

Bad_Kitty13 · Mar 21, 2014

on saphires site it says that a 600w psu is suffiecient for cfx
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1160&pid=1790&lid=1#

your stock cpu is 77w
your mem/chipset no more than 84w
your cards should consume around 144w a peice

couldnt find your specific card but these 3 are the ones i used to get power draw from
http://www.techpowerup.com/reviews/Powercolor/HD_7870_Devil/24.html
http://www.techpowerup.com/reviews/ASUS/HD_7870_Direct_Cu_II/24.html
http://www.techpowerup.com/reviews/MSI/HD_7870_HAWK/26.html

this is 449w on 12v rail
your psu pushes 648w on 12v rail

you should be fine even with your over clock

Taizette · Mar 21, 2014

Wow thanks alot for the replies guys an to bad kitty ur info really helped me its hard to find a answer with google been searching for a while an cant get much info thanks again xD

Bad_Kitty13 · Mar 21, 2014

no problem

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Is the Corsair TX 650m enough wattage to crossfire 2x Sapphire HD 7870 xts?

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