STRIX R9 390x Graphics Card and PSU query

[alphadogg]

Hi guys,
i am upgrading my system after a long time.my current system is
core i5 2500
2*4GB DDR3
ASUS P8 H67 MLx motherboard
ASUS radeon HD6850
(i am from india )
i am buying the ASUS RADEON R9 390X strix. so here are my questions...
1.WILL THE CARD BE COMPATIBLE WITH MY MOTHERBOARD AND WINDOWS 7?
2.I am thinking of buying a 750W PSU to allow headroom
the psu i have shortlisted are 1. thermaltake toughpower 750w gold-modular TPD-0750M 85$
and Antec’s TruePower Classic 750w TP-750-c 107$
i also have the option of buying Seasonic M12II-750 Bronze Evo Edition 750 Watts PSU, 135$. ( costly here)
i have no idea how much current this card draws from the 12v rail, and antec has 2 rails, will that be a issue? also i am from india so certain brands are unavailable like evga..

thanks in advance.

 

[Dark Lord of Tech]

The Antec listed is made by SEASONIC , and the Dual rails aren't an issue it can run the 390x.

 

[alphadogg]

The Antec listed is made by SEASONIC , and the Dual rails aren't an issue it can run the 390x.

What about the thermaltake psu? And also how much current does this card need on the 12v rail?