New psu

Hello, all. I'm a little new to computers, or at least the hardware side of things. I'm thinking about getting a new graphics card (going from a 5770 to a 5850) and wondered if I should upgrade to a new psu as well?

I'm currently using this; http://www.xsreviews.co.uk/reviews/power-supply-units/xilence-power-600w-gaming-edition/

and considering going for this;

http://www.amazon.co.uk/Coolermaster-Silent-Pro-700W-Modular/dp/B001BZD730

Is it worth it and would the new gpu and psu be compatible with my motherboard (gigabyte p55m-ud2?
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More about tomshardware
  1. http://www.amd.com/us/products/desktop/graphics/ati-radeon-hd-5000/hd-5850/Pages/ati-radeon-hd-5850-overview.aspx#3

    Your current PSU is fine since it is 600w. Also, I just switched from a Cooler Master to a Seasonic due to the fact it didn't meet it's listed rating. Most Cooler Master PSU's are over rated by 50-100w. So your PSU would still be the same wattage even if you did change to the 700w Cooler Master.

    Don't upgrade the PSU unless you are going to run 2 graphics cards in Crossfire or your current PSU sucks. But 600w is good enough, and the manufacturer for the video card recommends only a 500w PSU. So if you have a normal system, not too many expansion cards or more than 3 hard drives, I wouldn't worry about it.
  2. I would definitely recommend an upgrade the X-Silent has an unstable 12v rail and no 8pin mobo power lead.
    If you ever go to a different mobo(most require 8pin)you're SOL with the X-Silence.
    An unstable 12v rail is scary!it's the most important rail that supplies power to your system components.
    A quality 650W unit will run 2x5850.
    XFX P1-650X-NLG9 XXX 650W Modular Power Supply -£71.96 Inc VAT
    http://www.scan.co.uk/products/650w-xfx-xxx-edition-modular-80-plus-bronze-85-eff-sli-crossfire-eps-12v-135mm-fan
    Antec True Power New 650W Modular -£69.56 Inc VAT
    http://www.scan.co.uk/products/650w-antec-truepower-new-modular-80-plus-bronze-82-eff-sli-crossfire-eps-12v-120mm-fan
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