PSU Level needed?

RighteousGamer

Honorable
Oct 14, 2013
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•Graphics Card – GTX 780
•Power Supply – Corsair TX###
•Processor – Intel i7 4770k
•Hard Drive – Seagate 1 Terabyte
•RAM – 8gb PNY
•Monitor – A 23' monitor (Deciding)
Want to know if I need 650 750 or 850w. This will MOSTLY be used for gaming.
 
For a system using a single GeForce GTX 780 graphics card NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 42 Amps or greater and that has at least one 6-pin and one 8-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) may 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 Corsair TX Series TX650 (SKU# 75-001315 / CP-9020038) power supply unit, with its maximum combined +12 Volt continuous current rating of 54 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single GeForce GTX 780 graphics card.


For a system using two GeForce GTX 780 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 850 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 65 Amps or greater and that has at least two 6-pin and two 8-pin PCI Express supplementary power connectors.
 

EonW

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Jul 24, 2013
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Fair enough - it was a good answer. If you are going SLI, get a bigger monitor - you won't regret it. You can get some good priced 27 inch ones now.