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620 watt psu for gtx 660ti ?

Tags:
  • Zotac
  • Power Supplies
  • Nvidia
  • Gtx
  • GPUs
  • Graphics Cards
  • Components
Last response: in Components
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April 14, 2013 3:27:08 PM

hi guys, can i use use 620 watt psu (Seasonic S12II, 80+ bronze) for zotac nvidia gtx 660ti ? will it bottleneck the gpu ? because the recomended psu wattage for the gpu is 600watts.

More about : 620 watt psu gtx 660ti

April 14, 2013 3:34:52 PM

Nope, but if the gpu wants more power than the power supply can give, the computer will just shutdown abruptly. But a 80+ rated 600watt power supply should defiantly be enough for the gtx 660 ti.
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April 14, 2013 3:38:59 PM

For a system using a single GeForce GTX 660 Ti graphics card NVIDIA specifies a minimum of a 450 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 24 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

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

Overclocking of the CPU and/or GPU(s) will require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The Seasonic S12II-620 Bronze (SS-620GB), with its maximum combined +12 Volt continuous current rating of 48 Amps and with one 6-pin and one (6+2)-pin PCI Express supplementary power connectors, is way more than sufficient to power your system configuration with a single GeForce GTX 660 Ti graphics card.
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