How many watts for my psu

how many watts do i need for my psu I have a 3770k 1 670 but i will fo sure sli my 670 and 16 gb of ram
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More about watts
  1. The bare minimum you can go with is 550 watts, at 100% your GTX 670 SLI and 3770k with 16gb of ram uses 494 watts, include a DVD Drive, and hard drive and you should just reach 550 watts. I would recommend you go a bit over just in case and settle with a 600 watt power supply. Remember to keep your power supply brands to be high quality like Antec, XFX, Seasonic, PC power and cooling, Corsair, Enermax etc.

    Here is one example:
    *note there will not be a power cord with this, I assume you have one if you have older computers or built others before.
  2. ok thanks
  3. Yes that will work as well, it is wise to buy that if you are upgrading soon again, but like I said above 600watts will be enough for your build if you do not plan changing any of the parts.
  4. For a system using two GeForce GTX 670 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater power supply that has a combined +12 Volt continuous current rating of 45 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors.

    Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated @ 45-50°C ambient temperature, is the most important factor.

    The EVGA SuperNOVA NEX750G Gold (120-PG-0750-GR), with its combined +12 Volt continuous current rating of 61 Amps and with four 6-pin and four (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with two GeForce GTX 670 in 2-way SLI mode.
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