For a
system using a
single NVIDIA Reference Design GeForce GTX 760 graphics card NVIDIA specifies a minimum of a 500 Watt or greater
system power supply that has
a maximum combined +12 Volt continuous current rating of 30 Amps or greater and that has at least
two 6-pin PCI Express supplementary power connectors. Some of the non-Reference Design GeForce GTX 760 cards have a single 8-pin (e.g. ASUS GTX 760 DirectCU II OC) or two 8-pin (e.g. MSI GTX 760 HAWK) or one 6-pin and one 8-pin (e.g. Gigabyte GTX 760 WindForce OC, EVGA GTX 760 SC w/ACX Cooler, MSI GTX 760 TwinFrozr Gaming) 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) is the most critical factor.
If you want a PSU with semi-modular output cables:
Seasonic G-550 (SSR-550RM Active PFC F3)
• maximum combined +12 Volt continuous current rating of 45 Amps
• two (6+2)-pin PCI Express supplementary power connectors
• Haswell Compatible: Yes
• 80 PLUS GOLD Efficiency Certification
• 5 Year Limited Warranty
http://pcpartpicker.com/part/seasonic-power-supply-ssr550rm