Will my PSU be enough for a sapphire r9 280x dual x 3 gb gpu?

macki100

Honorable
Dec 30, 2013
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So im looking at a new card so I can run more recent games at higher frame rates/quality.
I currently have a Sapphire AMD Radeon HD 7770 1 gb ghz edition factory over clocked and it's beginning to become a pain as I had do down clock it (don't know if that's the name but whatever) as the drivers seemed to crash on directx 9 games. It is also falling behind with games like far cry 3 and I'm hoping to be able to play that at high quality and frame rates.
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1159&lid=1&pid=1745&leg=0

My psu is a Cooler Master eXtreme power plus 550w.
http://www.coolermaster.com/product/Detail/powersupply/extreme/extreme-power-plus-550w.html

Will it be enough to run a sapphire AMD r9 280x dual x 3 gb graphics card.
http://www.pbtech.co.nz/index.php?z=p&p=VGASAP8281&name=Sapphire-R9-280X-DUAL-X-BF4-Version-OC-VERSION-3G-

I'm from New Zealand so it will be from New Zealand websites and prices...

My system:

Intel core i5 3470 3.2 ghz turbo to 3.6 ghz

Gigabyte HD 55 series motherboard

Kingston hyper x 8 gb ram (2x4gb) ddr3

Sapphire Radeon HD 7770 ghz edition factory OC 1.1 ghz

Cooler master eXtreme power plus 550w
 
the recommended is not 750W. 500W is plenty if its a decent supply. yours will get by but honestly I wouldn't use that PSU in any build. coolermaster sells junk.

www.hardwaresecrets.com/article/Cooler-Master-eXtreme-Power-Plus-550-W-Power-Supply-Review/969/9