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Is 600 watts enough power?

Last response: in Systems
March 26, 2014 1:41:31 PM

I'm thinking about adding another r9 270x to my build, and i'm wondering if my 600w psu will be enough to power it all. Here are my specs:

CPU: i5 4670k 3.4 ghz
GPU: r9 270x
PSU: Corsair 600w psu
RAM: 1x8gb corsair vengeance 1600
mobo: Gigabyte Z87-ud3h

More about : 600 watts power

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March 26, 2014 1:52:42 PM

For SLI or Crossfire GPUs you will need at 750-850w power supply from a quality brand (xfx, seasonic, corsair (AX/HX series))

Power Supply: XFX 750W 80+ Bronze Certified ATX Power Supply ($79.99 @ NCIX US)
Total: $79.99

Power Supply: XFX ProSeries 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX US)
Total: $99.99

Power Supply: SeaSonic M12II 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($116.50 @ Newegg)
Total: $116.50

Edit: Corsair has a CX 750w for around $80 but I don't recommend the CX series for heavy load systems like crossfire mainly due to their cheap capacitors (CX series is a CWT brand PSU, chinese made OEM)
March 26, 2014 1:58:14 PM

I think possibly not.
You need 2 6 pin pcie connectors for each card.
A Corsair CX600(if that is what you have) only has two.
Normally a psu will have all the connectors that it has the power to support.
But... the cx600 has 2 6+2 connectors which indicates that it just might have enough.

You could try it, and be prepared to shell out $80-$100 for a quality 700w+ psu.

Or, consider the option of marketing your R9-270X and replacing it with a single great card.
Your psu can support any single gpu card made today.
Plus, you would avoid any possible cf issues like stuttering or tearing.