Is This PSU More Than Enough For This R9 280 GPU?

[Pure Michigan]

I have the R9 280 GPU and have a seasonic 80 gold 550 PSU but people on the site keep saying you need at least 650W plus for this type of GPU. Do I need to upgrade? Should I just opt for a higher PSU for a similar price? I dont want the psu to be overworking itself or running loud etc. I don't plan to SLI. Let me know what you think! thanks!

current psu: https://pcpartpicker.com/part/seasonic-power-supply-ssr550rm

another psu I'm considering: http://pcpartpicker.com/part/evga-power-supply-110b20750vr

current build:

CPU Intel Core i5-4440 3.1GHz Quad-Core $169.99
Motherboard ASRock H97 PRO4 ATX LGA1150 $81.00
Memory Team Zeus Blue 8GB (2 x 4GB) DDR3-1600 $61.98
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM $51.85
Video Card Sapphire Radeon R9 280 3GB DUAL-X $179.99
Case Antec GX500 ATX Mid Tower $57.98
Power Supply SeaSonic 550W ATX12V / EPS12V $78.99
Optical Drive Samsung SH-224DB/BEBE DVD/CD Writer $13.99
Operating System Microsoft Windows 8.1 (OEM) (64-bit) $89.98
Wireless Network Adapter Rosewill N600PCE 802.11a/b/g/n PCI-Express x1 $16.99

 

[Nuwan Fernando]

That PSU is more than enough to power that system. It'll work fine.

 

[pit_1209]

550w it´s enough, you´ll be fine. People tend the exagerate with the wattage needed in a build, maybe if you´re going to Crossfire in the future you will need some more but for just that build that will be enough, you can see for yourself. Nice PSU by the way, don´t change it.
http://extreme.outervision.com/psucalculatorlite.jsp

 

[Tradesman1]

Yep your fine, I normally recommend a 500 w/ 25 AMPs on the 12 volt - you've gor 45 AMPs and 540 on the 12 Volt

 

[Pure Michigan]

cool, thanks alot guys! You are all mostly saying I am "fine", just want to make sure "fine" is more than enough and not barely getting the job done?

I guess if I want to crossfire or whatever in the future I will need to upgrade to at least a 750W? That is why I was wondering whether it just made sense to get a 750W PSU like this EVGA on sale http://pcpartpicker.com/part/evga-power-supply-110b20750vr for a similar price to the PSU I have now? Or would a 750W not even be enough for a crossfire in the future? Thanks again for your reassurances!

 

[Tradesman1]

750 should cover you for 2 card XFire down the road yes