For a system using a single GeForce GTX 780 Ti 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 Cooler Master Silent Pro M 700W (RS-700-AMBA-D3) power supply unit, with its maximum combined +12 Volt continuous current rating of 50 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single GeForce GTX 780 Ti graphics card.
I wouldn't go as far as calling Coolermaster a respected brand when it comes to power supplies as they have as just many garbage units as they do quality units. The silent Pro series is one of their better models and should be just fine