System Power Supply Requirements for a single NVIDIA Reference Design GeForce GTX 980 Ti
• NVIDIA specifies a minimum of a 600 Watt or greater system power supply. (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 38 Amps or greater
• the system power supply should also have at least one 75-Watt 6-pin and one 150-Watt 8-pin PCI Express supplementary power connectors. There are some non-reference design cards that require two 150-Watt 8-pin PCI Express supplementary power connectors (E.g. ASUS GTX 980 Ti STRIX Gaming, EVGA GeForce GTX 980 Ti Classified ACX 2.0+ [06G-P4-4998], GIGABYTE GV-N98TG1 GAMING-6GD, MSI GTX 980TI GAMING 6G).
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.
Corsair RMi Series RM750i (SKU# RPS0008 / CP-9020082)
• OEM: CWT (Channel Well Technology)
• maximum combined +12 Volt continuous current rating: 62.5 Amps <===== Way 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
Even the RM650i would be more than sufficient.
Facebook
Twitter
Instagram