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650W Power Supply enough for GTX 660 Ti SLI?

I have a Corsair HX650 (the old one so its only 80+Bronze). It has 4 PCIe 6+2pin power connectors (2 are being used). I was planning to SLI in the next few months when GTX 700 comes out and the 660 Ti will drop its price... Can i run SLI using that power supply? Will it be sufficient?

I am not overclocking.

My system-
Intel 3770
Asus P8Z77 V Pro
Corsair 500R
Corsair HX650
Seagate 1TB HDD
8GB Corsair Vengeance
DVD Writer
Cooler Master Hyper 212 EVO
5 answers Last reply Best Answer
More about 650w power supply
  1. thanks for the reply, but ill wait for other opinions...
  2. Best answer
    with a single GTX660ti, total system power while gaming won't break 320w. with two cards you will peak around 470w

    a quality 650w PSU like the HX650 will do the job

    PU: Intel Core i7-3960X @ 4.3GHz
    Motherboard: EVGA X79 SLI
    Chipset Drivers: Intel 9.​2.​3.​1022
    Hard Disk: Samsung 470 (256GB)
    Memory: G.Skill Ripjaws DDR3-1867 4 x 4GB (8-10-9-26)

  3. thanks dirtyferret!
  4. Best answer selected by timarp000.
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