NEED HELP: XFX AMD Radeon R9 280X Black Double Dissipation Edition PSU requirment

ToyUnleased

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Aug 5, 2014
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As per XFX official website XFX AMD Radeon R9 280X Black Double Dissipation Edition PSU requirment is 750w minimum, i have a Cooler Master 700w real power pro modular SMPS from my previous system
some one says its enough one one says its not sufficient, i am confused, please help me out guys

my system config is:
AMD 3.5 GHz AM3+ FX 8320 8 Core Piledriver Processor
ASUS M5A97 Motherboard
Corsair Vengeance DDR3 8 GB (2 x 4 GB) PC RAM
XFX AMD Radeon R9 280X Black Double Dissipation Edition
Seagate 1 TB
Samsung DVD rw
PSU ---- ??????????

Please help me out guys, its really urgent,
will it be sufficient enough while card cpu will be overclocking?