Is this PSU enough for my build?

[linsanity]

CPU: Intel Core i5-2500k @ 4.0 ghz or higher
Motherboard: Asrock Pro3 z77 1155
RAM: Kingston Hyperx 4x4gb - 16GB/1600mhz/ @ 1.65v
GPU: msi nVidia gtx 560/660 ti 2GB overclocked or gtx 670
Heatsink: Coolermaster Hyper 212 EVO
HDD: Western Digital Blue 7200 rpm drive (only 1 drive for now)
Case: Coolermaster Haf xm
Optical Drive: Asus DVD Burner

I will be overclocking my i5-2500k and graphics card, also might upgrade my motherboard to the Asrock Extreme 4.

My question is will an XFX 650W (single 12v rail @ 53 amps/636w) power supply be able to handle the components in my build?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207014

 

[Outlander_04]

yes

 

[bigcyco1]

Yes your fine you could actually run X2 560 TI in SLI or X2 7850CF with that PSU it's built by Seasonic and is a very decent reliable PSU if you plan to run a single 670 your still fine.

 

[TheBigTroll]

id say no go on the 1.65v ram.

650w is plenty, a 550w will also work fine

 

[linsanity]

Best answer selected by linsanity.