Could this power supply handle my build?

[Shixma]

This is my first build and im unsure of how good a power supply I need.

http://uk.pcpartpicker.com/p/wcsZWZ

I may swap out the video card for a Asus Radeon R9 280 3GB DirectCU II Video Card
as well as changing to windows 8.1

is this power supply reliable, is 500W enough for a gaming pc?

 

[BossManFromTheHood]

That PSU is completely reliable and it will handle your build nicely. EVGA is a great company for PSUs. Be sure to select best answer.

 

[Shixma]

Ive been thinking of getting a Radeon r9 280x instead of just the 280. Would this PSU still be good enough?

 

[BossManFromTheHood]

It sure would! . Be sure to select best answer as it helps other people.