i7 4970k + GTX 980 TI G1 Power supply needed

[inbe]

HI im building a new rig and i wonder if this PSU Seasonic X-Series 650W GOLD Modular
is enough for i7 and gtx 980 ti g1 + overclocking both of them

 

[Suztera]

Yes it is enough with overclocking as well.

 

[ko888]

System Power Supply Requirements for a single Gigabyte GTX 980 Ti G1 Gaming [GV-N98TG1 GAMING-6GD]
• a minimum of a 600 Watt or greater system power supply is recommended. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
• the system power supply must also have a maximum combined +12 Volt continuous current rating of 45 Amps or greater
• the system power supply must also have at least two 150-Watt 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) 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.

Seasonic X-650 (SS-650KM3 Active PFC F3)
• OEM: Seasonic
• maximum combined +12 Volt continuous current rating: 54 Amps <===== More than sufficient
• four 150-Watt (6+2)-pin PCI Express supplementary power connectors <===== More than sufficient
• Ambient Temperature Maximum (i.e. without derating): 50°C
• Full Modular Output Cables: Yes
• Passes Official Intel Haswell Compliance Test: Yes
• 80 PLUS GOLD Efficiency Certification
• 7 Year Limited Warranty

Coil whine is one of the complaints with that PSU model.