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Power supply

Hi,
i am going to get a GeForce GTX 550 Ti.
My question is: what is the best PSU I can get for it?
I currently have 450W and a Geforce 210 (it uses about 300) and i know my computer uses around 100W, the 550ti uses 400W.
My two options are:
Cooler master Power Supply 240-Pin 600 Power Supply RS600-PCARE3-US​

http://www.amazon.com/Cooler-master-Supply-240-Pin-RS600-PCARE3-US/dp/B001NJ0CZA/ref=wl_it_dp_o_pC_nS_nC?ie=UTF8&coliid=I258H9NAOCI7WG&colid=36SIS60P1PU5Y

OR

Thermaltake Power Supply 240-Pin 600 Power Supply W0388RU

http://www.amazon.com/Thermaltake-Power-Supply-240-Pin-W0388RU/dp/B002RWJGHM/ref=wl_it_dp_o_pC_nS_nC?ie=UTF8&coliid=I2M6505Y87M47U&colid=36SIS60P1PU5Y
4 answers Last reply Best Answer
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  1. I would go with the thermaltike. It is cheaper and appears to have better reviews. It also seems quieter.

    You might want to look around a bit more, though. $65 doesn't seem like a great deal to me.
  2. Best answer
    nVIDIA states that the GeForce GTX 550 Ti has a Maximum Graphics Card Power of 116 Watts. I don't know where you got the 400 Watt value from.

    Even if the GeForce GTX 550 Ti is manually overclocked and running Furmark stability testing it won't draw any more than 183 Watts (i.e. using a ZOTAC GeForce GTX 550 Ti AMP! Edition as the worse case power draw example).

    For a system using a single GeForce GTX 550 Ti graphics card NVIDIA specifies a minimum of a 400 Watt or greater power supply that has a combined +12 Volt continuous current rating of 24 Amps or greater and that has at least one 6-pin PCI Express supplementary power connector.

    If your current 450 Watt PSU has a combined +12 Volt continuous current rating of 24 Amps or greater and has at least one 6-pin PCI Express supplementary power connector then you should have no problems.
  3. would you consider a corsair alternative like corsair cx 500 v2
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027&Tpk=corsair%20cx500%20v2
    or a seasonic like seasonic s12ii 520?
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094&Tpk=seasonic%20s12ii%20520
    or rosewill green series rg630-s12 630w
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817182200
    all have 80+ certifications. i don't see any 80+ ratings on the cm or tt psu images.
  4. Best answer selected by yehonatans.
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