650w Corsair enough for my build?

[Beresford]

Hello,

Am in the process of making this build but would like to know if 650w is enough and will it be SLI compatible in the future if I wanted another GTX 580?


Intel Sandybridge i5-2500K Unlocked Core i5 Quad-Core Processor (3.30GHz, 6MB Cache, Socket 1155) 
Corsair CMZ8GX3M2A1600C9 8GB 1600MHz CL9 DDR3 Vengeance Memory Two Module Kit
Palit GeForce GTX 580 NVIDIA Graphics Card with 3D Surround Ready (3GB,PCI-E 2.0, GDDR5)
60Gb OCZ Agility 3 SSD Read 525MB s Write 475MB s
Samsung F3 HD103SJ 1TB internal Hard Drive SATAII 32MB Cache 7200RPM – OEM
Gigabyte GA-Z68XP-UD3P Z68 Motherboard
Coolermaster HAF 922 Mid Tower Chassis
Corsair TX Series, 650 Watt, ATX, PS/2, Power Supply, UK Version
Samsung Blu-ray Combo Drive
Genuine Windows 7 Home Edition x64

Thank you in advance.

Beresford

 

[hunter315]

Its not going to run 2 GTX 580s, two 560s yes, but 2 580s should really cause you to move up to an 850W unit for safety, especially if you want to OC them at all.

 

[Beresford]

Hello,

Thanks. I think that when it comes time in a couple of years to get a new card I may upgrade my power supply or just get a better single GPU.

Thanks for your help!