Replacement power supply requirements with room for later upgrade

Aaron Wagner

Honorable
Jun 29, 2013
4
0
10,510
I'm replacing an older PSU that's finally dying.

Based on these system specs:
ASROCK Z77 extreme4
intel i5 3570k with cooler master hyper 212+ (overclocked)
corsair vengeance 8gb (2x4gb) ddr3
radeon hd6850
1 SSD, 1 SATA HDD, 1 DVD drive
Antec 900 case

Based on this, the calculators recommend a ~508W PSU. Assuming I upgrade my video card in roughly 3 years, will a 550W PSU cover a video card upgrade, or do I need to go bigger? I don't plan on going the dual video card route.
 
Solution
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207022

XFX P1-650X-XXB9 650W ATX12V 2.2 & ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply

Hardware Secrets Golden Award


This will do it.